共 6 条
[1]
Faith C., 1964, ARCH MATH, V15, P166
[3]
Ivanov G., 1972, B AUSTR MATH SOC, V6, P45
[4]
Ivanov G., 1975, B AUSTR MATH SOC, V12, P159
[5]
JACOBSON N, 1964, AMS C PUBL, V37
[6]
Johnson RE, 1961, J LOND MATH SOC, V36, P260, DOI [10.1112/jlms/s1-36.1.260, DOI 10.1112/JLMS/S1-36.1.260]