1. A. Altshuler, P. McMullen, (1973) The number of simplicial neighbourly d-polytopes with d+3 vertices. Mathematika 20 (1973), 262–266.
2. J. Bair, R. Fourneau, (1976) Etude géométrique des espaces vectoriels, II: Polyèdres et polytopes convexes. Seminar notes, Institute of Maths., Univ. Liège (1976).
3. D.W. Barnette, J.R. Reay, (1973) Projections of f-vectors of four-polytopes. J. Combinatorial Theory, Ser. A, 15 (1973), 200–209.
4. R.G. Bland, (1974) Complementary orthogonal spaces of R“ and orientability of matroids. Ph.D. thesis and Technical Report No. 219, Dept. of Operations Res., Cornell Univ. (1974).
5. R.G. Bland, (1977) A combinatorial abstraction of linear programming. J. Combinatorial Theory, Ser. B, 23 (1977), 33–57.