共 12 条
[1]
Collatz L., 1942, MATH Z, V48, P221
[3]
LEIGHTON W, 1958, T AM MATH SOC, V89, P325
[4]
LEVIN AI, 1963, DOKL AKAD NAUK SSSR+, V148, P512
[9]
TAAM CT, 1953, PORTUGAL MATH, V12, P57
[10]
[No title captured]