共 5 条
[1]
BIRKHOFF G, 1940, AM MATH SOC C PUBLIC, V25, pCH6
[2]
BIRKHOFF G, 1941, SURVEY MODERN ALGEBR, pCH11
[3]
Certaine J., 1943, B AM MATH SOC, V49, P869, DOI DOI 10.1090/S0002-9904-1943-08042-1.MR0009953
[4]
Richardson AR, 1940, P LOND MATH SOC, V47, P38
[5]
WHITEMAN AL, 1937, B AM MATH SOC, V43, P293