共 4 条
[1]
Dudeney H.E., 1967, 536 PUZZLES CURIOUS
[2]
HUNG SHY, 1974, AEQUATIONES MATH, V11, P256
[3]
HUNG SHY, 1977, DISCRETE MATH, V18, P23
[4]
Lawless J. F., 1974, Journal of Combinatorial Theory, Series A, V16, P76, DOI 10.1016/0097-3165(74)90073-9