1. Kingan, S. R.: Intersections of circuits and cocircuits in binary matroids, Discrete Math. 195, 157–165 (1999)
2. Oxley, J. G.: On the intersections of circuits and cocircuits in matroids, Combinatorica 4, 187–195 (1984)
3. Oxley, J. G.: Matroid Theory, (Oxford Science Publications) Oxford University Press, New York: 1992
4. Seymour, P. D.: The forbidden minors of binary clutters. J. London Math. Soc. 12(2), 356–360 (1976)
5. Seymour, P. D.: Decomposition of regular matroids. J. Combin. Theory Ser. B 28, 305–359 (1980)