共 8 条
[1]
FOULIS DJ, 1962, PORT MATH, V21, P65
[2]
FOULIS DJ, 1963, MICH MATH J, V10, P65
[3]
Mac Lane S., 1938, DUKE MATH J, V4, P455
[4]
MACKEY GW, 1945, T AM MATH SOC, V57, P155
[7]
RAMSAY A, 1965, T AM MATH SOC, V116, P9
[8]
[No title captured]