共 3 条
[1]
Graver J. E., 1973, J COMB THEORY A, V15, P75
[2]
INCIDENCE MATRICES OF SUBSETS - A RANK FORMULA
[J].
SIAM JOURNAL ON ALGEBRAIC AND DISCRETE METHODS,
1981, 2 (03)
:333-340
[3]
Wilson R. M., 1973, UTILITAS MATHEMATICA, V4, P207