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 | 2007 | |
|---|---|---|
| 2 |      | Philippe Balbiani, Valentin Goranko, Ruaan Kellerman, Dimiter Vakarelov: Logical Theories for Fragments of Elementary Geometry. Handbook of Spatial Logics 2007: 343-428 |
| 1 | | Ruaan Kellerman: First-Order Theories of Orthogonality Structures. Logic Journal of the IGPL 15(3): 255-270 (2007) |
| 1 | Philippe Balbiani | [2] |
| 2 | Valentin Goranko | [2] |
| 3 | Dimiter Vakarelov | [2] |