共 18 条
[1]
CARTAN H, 1956, HOMOLOGICAL ALGEBRA
[2]
COHEN IS, 1946, T AM MATH SOC, V59, P54
[3]
GILL DT, 1971, J LOND MATH SOC, V4, P140
[6]
Kaplansky I., 1942, DUKE MATH J, V9, P303
[8]
LAMBEK J, 1971, LECTURE NOTES MATHEM
[9]
Macdonald I. G., 1962, TOPOLOGY, V1, P213