共 8 条
- [1] Crapo H. H., 1966, J COMBINATORIAL THEO, V1, P126
- [2] CRAPO HH, 1967, REND SEM MAT U PADOV, V38, P23
- [3] CRAPO HH, TO BE PUBLISHED
- [4] HIGGS DA, TO BE PUBLISHED
- [5] Galois connexions [J]. TRANSACTIONS OF THE AMERICAN MATHEMATICAL SOCIETY, 1944, 55 (1-3) : 493 - 513
- [6] ROTA GC, 1964, GEBIETE, V0002, P00340
- [7] TUTTE WT, 1947, P CAMB PHILOS SOC, V43, P26
- [8] A CONTRIBUTION TO THE THEORY OF CHROMATIC POLYNOMIALS [J]. CANADIAN JOURNAL OF MATHEMATICS-JOURNAL CANADIEN DE MATHEMATIQUES, 1954, 6 (01): : 80 - 91