共 5 条
[1]
Berger R., 1966, MEM AM MATH SOC, V66
[2]
Golomb S.W., 1970, J COMB THEORY, V9, P60
[3]
Golomb S.W., 1966, J COMBIN THEORY, V1, P280
[4]
Klarner D.A., 1969, J COMBIN THEORY, V7, P107
[5]
OBEIRNE TH, 1962, NEW SCI, V13, P158