共 3 条
[1]
TRANSVERSALS AND MATROID PARTITION
[J].
JOURNAL OF RESEARCH OF THE NATIONAL BUREAU OF STANDARDS SECTION B-MATHEMATICAL SCIENCES,
1965, B 69 (03)
:147-+
[2]
NASHWILLIAMS CSA, 1985, J LOND MATH SOC, V31, P17
[3]
WELSH D, 1976, LONDON MATH SOC MONO, V8