1. Homotopy groups of the combinatorial Grassmannian;Anderson;Discrete Comput. Geom.,1998
2. Matroid bundles;Anderson,1999
3. L. Anderson, and, J. F. Davis, Mod 2 cohomology of the combinatorial Grassmanian, to appear.
4. Oriented Matroids;Björner,1993
5. Combinatorial differential manifold;MacPherson,1993