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2008     Back to top

	Christian Freksa, Nora Newcombe, Peter Gärdenfors, Stefan Wölfl (Eds.) (2008). Spatial Cognition VI: Learning, Reasoning, and Talking about Space, International Conference Spatial Cognition 2008, Freiburg, Germany, September 15-19, 2008. No. 5248, Lecture Notes in Artificial Intelligence. Springer.
	Sven Bertel, Thomas Barkowsky, Christian Freksa (2008). Mental model-centered design for built environments. In Saif Haq, Christoph Hölscher, Sue Torgrude (Eds.), Proc. of EDRAMOVE workshop on "Movement and orientation in built environments: evaluating design rationale and user cognition", EDRA 39th Annual Conference, No. 015-05/2008, pp. 13–19, SFB/TR 8 Report No. 015-05/2008.
	Frank Dylla, Diedrich Wolter, Lutz Frommberger, Christian Freksa, Stefan Wölfl, Bernhard Nebel (2008). Qualitative Methoden zur Steuerung von Agenten. In Industrie Management, 24 (4), pp. 21–24.
	Christian Freksa (2008). Zur interdisziplinären Erforschung räumlichen Denkens. In G.D. Rey, T. Wehr (Eds.), Kognitive Psychologie - Ausgewählte Grundlagen- und Anwendungsbeispiele, pp. 87–108. Pabst Science Publishers, Lengerich.
	Diedrich Wolter, Christian Freksa, Longin Jan Latecki (2008). Towards a Generalization of Self-Localization. In Margaret E. Jefferies, Wai-Kiang Yeap (Eds.), Robotics and Cognitive Approaches to Spatial Mapping, Vol. 38, pp. 105–138, Springer Tracts in Advanced Robotics. Springer, Berlin.
	Diedrich Wolter, Frank Dylla, Stefan Wölfl, Jan Oliver Wallgrün, Lutz Frommberger, Bernhard Nebel, Chrisitan Freksa (2008). SailAway: Spatial Cognition in Sea Navigation. In Künstliche Intelligenz, 22 (1), pp. 28–30.

2007     Back to top

	Sven Bertel, Georg Vrachliotis, Christian Freksa (2007). Aspect-oriented building design: Toward computer-aided approaches to solving spatial constraints in architecture. In Gary L. Allen (Ed.), Applied Spatial Cognition: From Research to Cognitive Technology, pp. 75–102. Lawrence Erlbaum Associates, Mahwah, NJ, USA.
	Christian Freksa, Sven Bertel (2007). Eye movements and smart technology. In Computers in Biology and Medicine, Vol. 37, pp. 983–988.

2006     Back to top

	Sven Bertel, Thomas Barkowsky, Dominik Engel, Christian Freksa (2006). Computational modeling of reasoning with mental images: basic requirements. In D. Fum, F. del Missier, A. Stocco (Eds.), Proceedings of the 7th International Conference on Cognitive Modeling, Trieste (ICCM 2006), pp. 50–55. Edizioni Goliardiche, Trieste.
	Sven Bertel, Thomas Barkowsky, Peter König, Holger Schultheis, Christian Freksa (2006). Sketching Mental Images and Reasoning with Sketches: NEVILLE -- a Computational Model of Mental & External Spatial Problem Solving. In D. Fum, F. del Missier, A. Stocco (Eds.), Proceedings of the 7th International Conference on Cognitive Modeling, Trieste (ICCM 2006), pp. 349–350. Edizioni Goliardiche, Trieste.
	Sven Bertel, Thomas Barkowsky, Peter König, Holger Schultheis, Christian Freksa (2006). Computational modeling of mental and external reasoning with sketches. In C. Freksa, M. Kohlhase, K. Schill (Eds.), Poster abstracts of 29th Annual German Conference on Artificial Intelligence (KI2006), pp. 1–3. Universität Bremen.
	Alexander Klippel, Christian Freksa, Stephan Winter (2006). You-Are-Here Maps in Emergencies - The Danger of Getting Lost. In Journal of Spatial Science, 51 (1).

2005     Back to top

	T. Barkowsky, C. Freksa, M. Knauff (Eds.) (2005). Special Issue: Spatial and visual components in mental reasoning about space. 5 (2&3), Spatial Cognition and Computation. Lawrence Erlbaum Associates, Mahwah, NJ, USA.
	Thomas Barkowsky, Christian Freksa, Mary Hegarty, Ric Lowe (2005). Reasoning with mental and external diagrams: computational modeling and spatial assistance - Papers from the 2005 AAAI Spring Symposium. AAAI Press, Menlo Park, CA.
	Sven Bertel, Christian Freksa (2005). Can we use eye tracking to support problem solving?. In M. Groner, R. Groner, R. Müri, K. Koga, S. Raess, P. Sury (Eds.), Proc. Thirteenth European Conference on Eye Movements ECEM13, (p. 41). . University of Bern, Switzerland.
	Christian Freksa, Sven Bertel (2005). Eye movements and smart technology. In Fourth Starkfest Conference on Vision and Movement in Men and Machines. Berkeley, May 2005, pp. 22–25. Electronics Research Laboratory, University of California, Berkeley. Memorandum No UCB/ERL M05/18.
	C. Freksa, T. Barkowsky, K. Rothermel, C. Becker (2005). Umgebungsmodelle und Raumkognition. In Armin B. Cremers, Rainer Manthey, Peter Martini, Volker Steinhage (Eds.), INFORMATIK 2005 - Informatik LIVE! Band 2, Beiträge der 35. Jahrestagung der Gesellschaft für Informatik e.V. (GI), Bonn, 19. bis 22. September 2005, Vol. 68, pp. 663–672, Lecture Notes in Informatics. German Informatics Society. Proceedings.
	Alexander Klippel, Kai-Florian Richter, Thomas Barkowsky, Christian Freksa (2005). The Cognitive Reality of Schematic Maps. In Liqiu Meng, Alexander Zipf, Tumasch Reichenbacher (Eds.), Map-based Mobile Services - Theories, Methods and Implementations, pp. 57–74. Springer, Berlin.
	Alexander Klippel, Lothar Knuf, Bernhard Hommel, Christian Freksa (2005). Perceptually Induced Distortions in Cognitive Maps. In Christian Freksa, Markus Knauff, Bernd Krieg-Brückner, Bernhard Nebel, Thomas Barkowsky (Eds.), Spatial Cognition IV. Reasoning, Action, Interaction: Proceedings of Spatial Cognition 2004, pp. 204–213. Springer, Berlin.
	Holger Schultheis, Sven Bertel, Thomas Barkowsky, Christian Freksa, Inessa Seifert (2005). Casimir: comprehensive Computational Modeling of Mental Spatial Knowledge Processing. In Poster Proceedings of the Conference on Spatial Information Theory (COSIT). 14. - 18. Sept. 2005, Ellicottville, New York.

2004     Back to top

	Sven Bertel, Christian Freksa, Georg Vrachliotis (2004). Aspectualize and conquer in architectural design. In J. S. Gero, B. Tversky, T. Knight (Eds.), Visual and Spatial Reasoning in Design III, pp. 255–279. Key Centre of Design Computing and Cognition, University of Sydney.
	M. J. Egenhofer, C. Freksa, H. J. Miller (Eds.) (2004). Geographic Information Science, Third International Conference GIScience 2004. Vol. 3234, Lecture Notes in Computer Science. Springer, Berlin.
	Christian Freksa, Georg Vrachliotis, Sven Bertel (Eds.) (2004). Mental conceptions of emergent spaces in architectural design. Workshop notes at First Intl. Conference on Design Computing (DCC04). 23 July 2004, MIT, Cambridge, MA.
	C. Freksa (2004). Spatial Cognition – an AI perspective. In R. López de Mantaras, L. Saitta (Eds.), Proc. European Conference on Artificial Inteligence (ECAI'04), pp. 1122–1128. IOS Press, Amsterdam.
	Alexander Klippel, Carsten Dewey, Markus Knauff, Kai-Florian Richter, Dan R. Montello, Christian Freksa, Esther-Anna Loeliger (2004). Direction Concepts in Wayfinding Assistance Systems. In Jörg Baus, Christian Kray, Robert Porzel (Eds.), Workshop on Artificial Intelligence in Mobile Systems (AIMS'04), pp. 1–8. SFB 378 Memo 84, Saarbrücken.
	Kai-Florian Richter, Alexander Klippel, Christian Freksa (2004). Shortest, Fastest, - but what Next? A Different Approach to Route Directions. In Martin Raubal, Adam Sliwinski, Werner Kuhn (Eds.), Geoinformation und Mobilität - von der Forschung zur praktischen Anwendung. Beiträge zu den Münsteraner GI-Tagen 2004, pp. 205–217, IfGIprints. Institut für Geoinformatik, Münster.

2003     Back to top

	C. Freksa, W. Brauer, C. Habel, KF. Wender (2003). Spatial Cognition III – routes and navigation, human memory and learning, spatial representation and spatial reasoning, LNAI 2685. Springer, Berlin.
	R. Moratz, B. Nebel, C. Freksa (2003). Qualitative spatial reasoning about relative position: The tradeoff between strong formal properties and successful reasoning about route graphs.. In C. Freksa, C. Habel, K. F. Wender (Eds.), Spatial Cognition III, pp. 385–400. Springer Verlag, 14197 Berlin.
	Reinhard Moratz, Bernhard Nebel, Christan Freksa (2003). Qualitative spatial reasoning about relative position: The tradeoff between strong formal properties and successful reasoning about route graphs. In Christian Freksa, Wilfried Brauer, Christopher Habel, Karl Friedrich Wender (Eds.), Spatial Cognition III, Vol. 2685, pp. 385–400, Lecture Notes in Artificial Intelligence.

2002     Back to top

	Christian Freksa (2002). Special issue Spatial Cognition. In KI 4, No. 4.
	M. Knauff, C. Schlieder, C. Freksa (2002). Spatial cognition: From rat-research to multifunctional spatial assistance systems. In KI, No. 4, pp. 5–9.

2001     Back to top

	Christian Freksa, Rudolf Kruse, Ramon de Lopéz Mántaras (2001). Interview with Prof. Lofti A. Zadeh. In KI, Vol. 3, pp. 40–43.
	J. H. Steinhauer, T. Wiese, C. Freksa, T. Barkowsky (2001). Recognition of abstract regions in cartographic maps. In D. R. Montello (Ed.), Spatial Information Theory - Foundations of Geographic Information Science, pp. 306–321. Springer, Berlin.

2000     Back to top

	H. Casakin, T. Barkowsky, A. Klippel, C. Freksa (2000). Schematic Maps as Wayfinding Aids. In C. Freksa, W. Brauer, C. Habel, K.F. Wender (Eds.), Spatial Cognition II - Integrating Abstract Theories, Empirical Studies, Formal Methods, and Practical Applications, pp. 54–71. Springer, Berlin.
	C. Freksa, R. Moratz, T. Barkowsky (2000). Schematic Maps for Robot Navigation. In C. Freksa, W. Brauer, C. Habel, K.F. Wender (Eds.), Spatial Cognition II - Integrating Abstract Theories, Empirical Studies, Formal Methods, and Practical Applications, pp. 100–114. Springer, Berlin.
	C. Freksa, R. Moratz, T. Barkowsky (2000). Robot navigation with schematic maps. In E. Pagello et al (Ed.), Intelligent Autonomous Systems 6, pp. 809–816. IOS Press, Amsterdam.
	C. Freksa, W. Brauer, C. Habel, K.F. Wender (Eds.) (2000). Spatial Cognition II. Integrating Abstract Theories, Empirical Studies, Formal Methods, and Practical Applications.
	R. Moratz, T. Barkowsky, C. Freksa (2000). Diagrammatic instruction maps for human-robot interaction. In T. Röfer, A. Lankenau, R. Moratz (Eds.), Service Robotics - Applications and Safety Issues in an Emerging Market. Workshop Notes. European Conference on Artificial Intelligence 2000 (ECAI 2000), pp. 17–18.

1999     Back to top

	C. Freksa, T. Barkowsky, A. Klippel (1999). Spatial symbol systems and spatial cognition: A computer science perspective on perception-based symbol processing. In Behavioral and Brain Sciences, 22 (4), pp. 616–617.
	C. Freksa, T. Barkowsky (1999). On the duality and on the integration of propositional and spatial representations. In G. Rickheit, C.Habel (Eds.), Mental Models in Discourse Processing and Reasoning, pp. 195–212. Elsevier, Amsterdam.
	C. Freksa (1999). Spatial Aspects of Task-Specific Wayfinding Maps. In J.S. Gero, B. Tversky (Eds.), Visual and Spatial Reasoning in Design, pp. 15–32. Key Centre of Design Computing and Cognition, University of Sydney.
	C. Freksa, D.M Mark (Eds) (1999). Spatial information theory- Cognitive and computational foundations of geographic information science (COSIT 99).
	DM. Mark, C. Freksa, S.C. Hirtle, R. Lloyd, B. Tversky (1999). Cognitive Models of Geographic Space. In International Journal of Geographical Information Science, 13 (8), pp. 747–774.

1998     Back to top

	B. Berendt, T. Barkowsky, C. Freksa, S. Kelter (1998). Spatial representation with aspect maps. In C. Freksa, C. Habel, K. F. Wender (Eds.), Spatial Cognition I - An interdisciplinary approach to representing and processing spatial knowledge, pp. 313–336. Springer, Berlin.
	C. Freksa (1998). Links vor - Prototyp oder Gebiet? Probabilistische und possibilistische Raumbeschreibung. In G. Rickheit (Ed.), Richtungen im Raum, pp. 231–246. Westdeutscher Verlag, Opladen.
	C. Freksa, C. Habel, K.F. Wender (Eds.) (1998). Spatial Cognition I - An interdisciplinary approach to representing and processing spatial knowledge.
	Christian Freksa, Thomas Barkowsky, Alexander Klippel (1998). Interpretative and constructive processes in spatially organized knowledge structures. In Advances in Artificial Intelligence, (p. 272). .
	Alexander Klippel, Thomas Barkowsky, Christian Freksa (1998). Maps versus sketches. The Second Swedish Symposium on Multimodal Communication. In Lund University Cognitive Science.
	R. Moratz, C. Freksa (1998). Spatial Reasoning with uncertain Data Using Stochastic Relaxation. In W. Brauer (Ed.), Fuzzy-Neuro Systems 98, pp. 106–112. Infix, Sankt Augustin.

1997     Back to top

	Thomas Barkowsky, Christian Freksa (1997). Cognitive requirements on making and interpreting maps. In S. Hirtle, A. Frank (Eds.), Spatial information theory: A theoretical basis for GIS. Proceedings of COSIT 97, pp. 347–361. Springer, Berlin, Heidelberg.
	Thomas Barkowsky, Christian Freksa, Bettina Berendt, Stefanie Kelter (1997). Aspektkarten - Integriert räumlich-symbolische Repräsentationsstrukturen. In C. Umbach, M. Grabski, R. Hörnig (Eds.), Perspektive in Sprache und Raum, Studien zur Kognitionswissenschaft, pp. 147–168. Deutscher Universitäts-Verlag, Wiesbaden.
	C. Freksa (1997). Spatial and temporal structures in cognitive processes. In C. Freksa, M. Jantzen, R. Valk (Eds.), Foundations of Computer Science. Potential -- Theory -- Cognition, pp. 379–387. Springer, Berlin.
	C. Freksa, M. Jantzen, R. Valk (Eds.) (1997). Foundations of Computer Science. Potential -Theory - Cognition.
	S. Werner, B. Krieg-Brückner, H.A. Mallot, K. Schweizer, C. Freksa (1997). Spatial cognition: the role of landmark, route, and survey knowledge in human and robot navigation. In M. Jarke, K. Pasedach, K. Pohl (Eds.), Informatik 97, pp. 41–50. Berlin, Heidelberg, New York, Springer.

1996     Back to top

	T. Barkowsky, R. Röhrig , C. Freksa (1996). Operationalizing diagrammaticity. In ECAI-96 Workshop on Representations and processes between vision and natural language. Budapest.
	C. Freksa, T. Barkowsky (1996). On the relation between spatial concepts and geographic objects. In P. Burrough, A. Frank A (Eds.), Geographic objects with indeterminate boundaries, pp. 109–121. Taylor and Francis, London.
	Christian Freksa (1996). Künstliche Intelligenz. In G. Strube, B. Becker C. Freksa, U. Hahn, K. Opwis, G. Palm (Eds.), Wörterbuch der Kognitionswissenschaft, pp. 344–347. Klett-Cotta, Stuttgart.
	Christian Freksa (1996). Erratum to "Temporal Reasoning Based on Semi-Intervals" [Artif. Intell. 54 (1992) 199-227]. In Artificial Intelligence, Vol. 87, (p. 387). .
	G. Strube, B. Becker, C. Freksa, U. Hahn, K. Opwis, G. Palm (1996). Wörterbuch der Kognitionswissenschaft. Klett-Cotta, Stuttgart.
	W.H. Zangemeister, H.S. Stiehl, C. Freksa(Eds) (1996). Visual attention and cognition.
	K. Zimmermann, C. Freksa (1996). Qualitative spatial reasoning using orientation, distance, and path knowledge. In Applied Intelligence, Vol. 6, pp. 49–58.

1995     Back to top

	C. Freksa, B. Berendt (Eds.) (1995). Time and space in cognitive systems. European Conference on Cognitive Science, Saint-Malo 1995.
	T. Barkowsky, B. Berendt, S. Egner, C. Freksa, L. Latecki, R. Röhrig (1995). Movies: an integrated space-time representation for qualitative navigation. In B. Krieg-Brückner, C. Herwig (Eds.), Kognitive Robotik. Zentrum für Kognitionswissenschaften, Universität Bremen.
	T. Barkowsky, B. Berendt, S. Egner, C. Freksa, L. Latecki, R. Röhrig (1995). Qualitative orientation and navigation using purposive vision. Arbeitspapier Nr. 25, Graduiertenkolleg Kognitionswissenschaft. Universität Hamburg.
	Eschenbach C, Freksa C, Habel C (1995). Themenheft Räume, Kognitionswissenschaft 4.
	Christian Freksa (1995). Themenheft KI und Kognition. In KI9, No. 6.
	WH. Zangemeister, U. Öchsner, C. Freksa (1995). Short-term adaptation of eye movements in patients with visual hemifield defects indicates high level control of human scanpath. In Optometry & Vision Science, No. 72, 7, pp. 467–477.

1994     Back to top

	T. Barkowsky, B. Berendt, S. Egner, C. Freksa, T. Krink, R. Röhrig, A. Wulf (1994). The Realator: how to construct reality. In RV Rodríguez (Ed.), ECAI’94 Workshop W12 Spatial and temporal reasoning. Amsterdam.
	C. Freksa (1994). Fuzzy systems in AI: An overview. In R. Kruse, J. Gebhardt, R. Palm (Eds.), Fuzzy systems in computer science, pp. 155–169. Vieweg, Braunschweig/Wiesbaden.
	C. Freksa (1994). Fuzzy logic: an interface between logic and human reasoning. In IEEE Expert, No. 9, pp. 20–21, IEEE.
	R. Röhrig, C. Freksa (1994). A framework for comparing theories for qualitative spatial reasoning. In Rodríguez RV (Ed.), Spatial and temporal reasoning, AAAI Workshop Seattle.

1993     Back to top

	WH. Zangemeister, S. Egner, F. Dannheim, C. Freksa (Eds.) (1993). Short-term adaptation of search-scan- & reading-path in patients with stroke-related visual field defects. Intern. Congr. on stroke rehabilitation.
	C. Freksa, R. Röhrig (1993). Dimensions of qualitative spatial reasoning. In N. P. Carrete, M. G. Singh (Eds.), Qualitative reasoning and decision technologies, Proc. QUARDET93, pp. 483–492.
	C. Freksa, K. Zimmermann (1993). On the utilization of spatial structures for cognitively plausible and efficient reasoning. In FD. Anger HW. Güsgen, J. v.Benthem (Eds.), Proc. of the Workshop on Spatial and temporal reasoning, pp. 61–66. Chambery.
	K. Zimmermann, C. Freksa (1993). Enhancing spatial reasoning by the concept of motion. In A. Sloman, D. Hogg, G. Humphreys, A. Ramsay (Eds.), Prospects for Artificial Intelligence, pp. 140–147. Amsterdam: IOS-Press.
	K. Zimmermann, C. Freksa (1993). Qualitatives räumliches Schließen mit Wissen über Richtungen, Entfernungen und Pfade.. In KI 4, pp. 21–28.

1992     Back to top

	C. Freksa (1992). Using orientation information for qualitative spatial reasoning. In A. U. Frank, I. Campari, U. Formentini (Eds.), Theories and methods of spatio-temporal reasoning in geographic space, pp. 162–178. Springer, Berlin.
	C. Freksa (1992). Temporal reasoning based on semi-intervals. In Artificial Intelligence, 54 (1), pp. 199–227.
	C. Freksa, K. Zimmermann (1992). On the utilization of spatial structures for cognitively plausible and efficient reasoning. In IEEE Intern. Conf. Systems Man and Cybernetics, pp. 261–266, IEEE. Chicago.
	M. Homann ans R. Sander , C. Wiegand, A. Wulf, K. Zimmermann, C. Freksa (1992). Orientation-based qualitative spatial reasoning. In ECAI ’92 Workshop Spatial Concepts: Connecting cognitive theories with formal representations.
	Christian Freksa (1992). Über den Unterschied zwischen Logik-basierten und logischen Ansätzen zur Wissensrepräsentation. In KI 3/92, pp. 95–98.

1991     Back to top

	Christian Freksa (1991). Conceptual neighborhood and its role in temporal and spatial reasoning. In M. Singh, L. Travé-Massuyès (Eds.), Decision Support Systems and Qualitative Reasoning, pp. 181–187. North-Holland, Amsterdam.
	Christian Freksa (1991). Qualitative spatial reasoning. In DM. Mark, AU. Frank (Eds.), Cognitive and linguistic aspects of geographic space, pp. 361–372. Kluwer, Dordrecht.
	Christian Freksa (1991). Wissensdarstellung und Kognitionsforschung. In Wissensrepräsentation, pp. 61–68. Oldenbourg, München.

1990     Back to top

	P. Bräunling , C. Freksa, K. Zimmermann (1990). The SpaceGarden bibliography. In C. Freksa, C. Habel (Eds.), Repräsentation und Verarbeitung räumlichen Wissens, No. 245, pp. 267–353, Informatik-Fachberichte. Springer, Berlin.
	Christian Freksa (1990). Cognitive Science – eine Standortbestimmung. In Universitas, No. 525, pp. 232–240.
	C Freksa, C Habel (1990). Warum interessiert sich die Kognitionsforschung für die Darstellung räumlichen Wissens?. In C Freksa, C Habel (Eds.), Repräsentation und Verarbeitung räumlichen Wissens, pp. 1–15. Springer, Berlin.
	C. Freksa, C. Habel (Eds.) (1990). Repräsentation und Verarbeitung räumlichen Wissens. No. 245, Informatik-Fachberichte. Springer, Berlin.
	Christian Freksa (1990). Temporal reasoning based on semi-intervals. International Computer Science Institute Report TR-90-016. Berkeley, California.
	C. Freksa, P. Bräunling, K. Zimmermann (1990). The SpaceGarden interface for an interdisciplinary bibliography system. Technische Universität München; Institut für Informatik.

1989     Back to top

	W. Brauer, C. Freksa , the AI/Cognition Group (1989). Connectionist approaches to the description of spatial knowledge. TU München.
	W. Brauer, C. Freksa (1989). Wissensbasierte Systeme. In Informatik-Fachberichte, No. 227.
	Christian Freksa (1989). Wissensdarstellung und Kognitionsforschung,. In Informationstechnik it 31, No. 2, pp. 134–140.

1988     Back to top

	Christian Freksa (1988). Intrinsische vs. extrinsische Repräsentation zum Aufgabenlösen oder die Verwandlung von Wasser in Wein. In G. Heyer, J. Krems, G. Görz (Eds.), Wissensarten und ihre Darstellung, pp. 155–165. Springer, Berlin.
	Christian Freksa (1988). Cognitive Science – eine Standortbestimmung. In G. Heyer, J. Krems, G. Görz (Eds.), Wissensarten und ihre Darstellung, pp. 1–12. Springer, Berlin.
	Christian Freksa (1988). Mit welchen Themen soll sich die KI auseinandersetzen?. In W. Hoeppner (Ed.), Künstliche Intelligenz., pp. 327–333. Springer, Berlin.
	C. Freksa, D. Hernández, M. Marcinowski, J. Schmidhuber (1988). Sprachartige Beschreibung von Objekten und räumlichen Gegebenheiten in einem konnektionistischen System. Skizze eines Forschungsprojektes. In C. Lischka, J. Kindermann (Eds.), Workshop Konnektionismus, GMD Berichte. St. Augustin.
	U. Furbach , C. Freksa, G. Dirlich (1988). Wissensrepräsentation in künstlichen symbolverarbeitenden Systemen. In H. Mandl, H. Spada, Hg, (Eds.), Wissenspsychologie, pp. 505–528. Psychologie Verlags Union, München.

1987     Back to top

	N. Erol, C. Freksa (1987). An approach to structuring and formalizing knowledge for a design support system. In P. Jorrand, V. Sgurev (Eds.), Artificial Intelligence II. Methodology, Systems, Applications, pp. 271–279. North-Holland, Amsterdam.
	Christian Freksa (1987). Spezielle Sektion: Kognition – Wissensstrukturen beim Aufgabenlösen. In K. Morik, Hg (Eds.), GWAI-87, 11th German Workshop on Artificial Intelligence, pp. 277–305, Informatik-Fachberichte 152. Springer, Berlin.

1986     Back to top

	G. Dirlich, H. v.Benda, C. Freksa, U. Furbach, A. Müller, K. Wimmer (1986). Computerunterstützte Planung von Ferienreisen – ein fiktives Beispiel. In G. Dirlich, C. Freksa, U. Schwatlo, K. Wimmer, Hg (Eds.), Kognitive Aspekte der Mensch-Computer-Interaktion, pp. 22–36. Springer, Berlin.
	G. Dirlich, C. Freksa, U. Schwatlo , K. Wimmer (1986). Kognitive Aspekte der Mensch-Computer-Interaktion. Springer, Berlin.
	Christian Freksa (1986). Knowledge representation for interactive aircraft design. In T. Bernold (Ed.), Expert systems and knowledge engineering, pp. 221–230. North-Holland, Amsterdam.

1985     Back to top

	U. Furbach, G. Dirlich, C. Freksa (1985). Towards a theory of knowledge representation systems. In W. Bibel, B. Petkoff (Eds) (Eds.), Artificial Intelligence Methodology, Systems, Applications, pp. 77–84, North-Holland, Amsterdam. North-Holland, Amsterdam.
	G. Dirlich, U. Furbach, C. Freksa (1985). Aspekte der Wissensrepräsentation in künstlichen Systemen. In H. Mandl, PM. Fischer (Eds.), Lernen im Dialog mit dem Computer, pp. 121–130. Urban & Schwarzenberg, München.
	C. Freksa, U. Furbach, G. Dirlich (1985). Cognition and Representation. In Hg. Laubsch J (Ed.), GWAI-84. 8th German Workshop on Artificial Intelligence, pp. 119–144. Springer, Berlin.
	C. Freksa, A. Kobsa (1985). Erhebung zur Kognitionsforschung im deutschsprachigen Raum. München.

1984     Back to top

P. Haddawy, C. Freksa (1984). A description of knowledge representation features for a design support system. Forschungsgruppe Künstliche Intelligenz, Institut für Informatik, Technische Universität München.

1983     Back to top

	G. Dirlich, C. Freksa, U. Furbach (Eds.) (1983). A central problem in representing human knowledge in artificial systems: the transformation of intrinsic into extrinsic representations. Proc. 5th Cognitive Science Conference. Rochester.
	W. Bibel, M. Bruynooghe, C. Freksa, P. Haddawy, M. Moreau (1983). An overview of formalisms, issues, languages, and systems for the representation of knowledge. Technische Universität München; Institut für Informatik.

1982     Back to top

	Christian Freksa, R. López de Mántaras (Eds.) (1982). An adaptive computer system for linguistic categorization of "soft" observations in expert systems and in the social sciences. Proc. 2nd World Conf. on Mathematics at the service of man.
	Christian Freksa (1982). FUZZY. In In A Barr, EA Feigenbaum (Eds.), The Handbook of Artificial Intelligence.
	Christian Freksa (1982). Linguistic description of human judgments in expert systems and in the ‘soft’ sciences. In MM Gupta, E Sanchez (Eds.), Approximate reasoning in decision analysis, pp. 297–305.
	Christian Freksa (1982). Linguistische Kategorisierung von Verhaltensmerkmalen, MEMO 3, Projekt Linguistische Kategorisierung von Verhaltensmerkmalen, Max-Planck-Institut für Psychiatrie. In Abstract in J. of Pragmatics, No. 6, pp. 373–374.

1981     Back to top

	Christian Freksa (1981). Linguistic pattern characterization and analysis. Department of Electrical Engineering and Computer Sciences, University of California.
	R. López de Mántaras, C. Freksa , J. Aguilar-Martín (1981). Algorisme d´adaptació recursiva de funcions de possibilitat per a l´aprenentatge de la significació de conceptes imprecisos. In Convencion de Informatica Latina, pp. 250–257.

1980     Back to top

	Christian Freksa (1980). L-FUZZY -- an AI language with linguistic modification of patterns. In ERL Memo. Electronics Research Laboratory, University of California, Berkeley.
	Christian Freksa (1980). Communication about visual patterns by means of fuzzy characterizations. In Congress of Psychology. Leipzig.

1979     Back to top

L. Stark , S. Ellis , H. Inoue, C. Freksa, Z. Portnoy , J. Zeevi (1979). Cognitive models direct scanpath eye movements: evidence obtained by means of computer processing of perceptual scanpath eye movements. In XII Intern. Conference on Medical & Biological Engineering.

1978     Back to top

Christian Freksa (1978). The future of AI and its impact on society. In SIGART 67, pp. 7–9.

1976     Back to top

Christian Friedrich-Freksa (1976). SOMNIA -- Design and development of an interactive on-line data management system for biomedical applications. M.S. Thesis.

1973     Back to top

	G. Dirlich, C. Friedrich-Freksa , H. Schulz (1973). A time-dependent model of the sleep EEG. In WP.Koella, P. Levin (Eds.), Sleep, (p. 253-257). . Karger, Basel.
	W. Probst, H. Schulz, G. Dirlich, H. Schuh, C. Friedrich-Freksa (1973). On-line classification of sleep stages with a lab computer. In Jovanovic UJ (Ed.), The Nature of Sleep, pp. 9–12. Gustav Fischer Verlag, Stuttgart.
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