1.
 |  | Title: Spatial Cognition III: Routes and Navigation, Human Memory and Learning, Spatial Representation and Spatial Learning by C. Freksa, Wilfried Brauer, Christopher Habel, Karl F. Wender, Christian Freksa ISBN: 3540404309 Publisher: Springer-Verlag Pub. Date: 01 July, 2003 List Price: $71.00 Amazon.com Price: $71.00 |
2.
 |  | Title: Visual Attention and Cognition by W. H. Zangemeister, H. S. Stiehl, C. Freksa ISBN: 0444822917 Publisher: Elsevier Science Pub Co Pub. Date: 01 September, 1996 List Price: $143.00 Amazon.com Price: $143.00 |
3.
 |  | Title: Spatial Cognition II: Integrating Abstract Theories, Empirical Studies, Formal Methods, and Practical Applications by C. Freksa, Freska ISBN: 3540675841 Publisher: Springer-Verlag Telos Pub. Date: 01 July, 2000 List Price: $82.95 Amazon.com Price: $82.95 |
4.
 |  | Title: Foundations of Computer Science: Potential-Theory-Cognition by Wilfried Brauer, C. Freksa, Matthias Jantzen, R. Valk, Christian Freksa ISBN: 354063746X Publisher: Springer-Verlag Pub. Date: 01 June, 1997 List Price: $98.00 Amazon.com Price: $98.00 |