共 7 条
[2]
Brooks R. L., 1940, DUKE MATH J, V7, P312, DOI 10.1215/S0012-7094-40-00718-9
[3]
KONIG D, 1936, THEORIE ENDLICHEN UN
[4]
Petersen J., 1898, INTERMED MATH, V5, P225
[5]
Tutte W.T., 1950, P LOND MATH SOC, V51, P474, DOI DOI 10.1112/PLMS/S2-51.6.4740033.30803
[7]
WHITNEY H., 1932, B AM MATH SOC, V38, P572, DOI 10.1090/S0002-9904-1932-05460-X