共 11 条
- [1] BERGE C, 1974, GRAPHES HYPERGRAPHES
- [2] BONDY JA, 1972, P AM MATH SOC, V33, P241
- [3] GROTZSCH H, 1958, WISS Z M LUTHER U MN, V8, P109
- [4] ON DEGREES OF VERTICES OF DIRECTED GRAPH [J]. JOURNAL OF THE FRANKLIN INSTITUTE-ENGINEERING AND APPLIED MATHEMATICS, 1965, 279 (04): : 290 - &
- [5] HEAWOOD PJ, 1898, QUART J MATH, V19, P270
- [6] JAEGER F, 1975, 5TH P BRIT COMB C AB
- [7] Minty G. J., 1967, J COMB THEORY, V2, P164
- [9] Ore O, 1967, PURE APPL MATH, V27
- [10] LECTURES ON MATROIDS [J]. JOURNAL OF RESEARCH OF THE NATIONAL BUREAU OF STANDARDS SECTION B-MATHEMATICS AND MATHEMATICAL, 1965, B 69 (1-2): : 1 - +