| | |
- CSB - MetaPress - Google - Bing - Yahoo
 | 1999 | |
|---|---|---|
| 1 |      | David M. Mark, Christian Freksa, Stephen C. Hirtle, Robert Lloyd, Barbara Tversky: Cognitive models of geographical space. International Journal of Geographical Information Science 13(8): 747-774 (1999) |
| 1 | Christian Freksa | [1] |
| 2 | Stephen C. Hirtle | [1] |
| 3 | David M. Mark | [1] |
| 4 | Barbara Tversky | [1] |
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