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| 1993 | ||
|---|---|---|
| 2 | Raul Cordovil, M. L. Moreira: Bases-cobases graphs and polytopes of matroids. Combinatorica 13(2): 157-165 (1993) | |
| 1 | EE | Raul Cordovil, M. L. Moreira: A homotopy theorem on oriented matroids. Discrete Mathematics 111(1-3): 131-136 (1993) |
| 1 | Raul Cordovil | [1] [2] |