1. On a characterization of the Grassmann spaces associated with an affine space;Bichara;Ann. Discrete Math.,1983
2. On a characterization of the Grassmann manifold representing the planes in a projective space;Bichara;Ann. Discrete Math.,1982
3. On a characterization of the Grassmann manifold representing the h -dimensional subspaces in a projective space;Bichara;Ann. Discrete Math.,1983
4. On a theorem of Cooperstein;Cohen;Europ. J. Combinatorics,1983
5. Point-line spaces related to buildings;Cohen,1995