1. On Reid's characterization of the ternary matroids;Bixby;J. Comb. Theory, Ser. B,1979
2. Oriented Matroids;Björner,1999
3. Orientability of matroids;Bland;J. Comb. Theory, Ser. B,1978
4. Uniquely representable combinatorial geometries;Brylawski,1976
5. Matrices totalement unimodulaires et problèmes combinatoires;Camion,1963