共 3 条
[1]
Fraenkel A. S., 1975, Computers & Mathematics with Applications, V1, P237, DOI 10.1016/0898-1221(75)90022-X
[2]
FRAENKEL AS, 1973, 10 P INT COLL INF FI
[3]
Smith C., 1966, J COMB THEORY, V1, P51