共 4 条
[1]
Erdo P., 1966, J SCI FOOD AGR, V1, P51
[2]
REPRESENTATION OF A GRAPH BY SET INTERSECTIONS
[J].
CANADIAN JOURNAL OF MATHEMATICS,
1966, 18 (01)
:106-&
[3]
Hall P., 1935, J LONDON MATH SOC, V1, P26, DOI DOI 10.1112/JLMS/S1-10.37.26
[4]
Turan P., 1941, MAT FIZ LAPOK, V48, P436