共 12 条
[1]
Albrecht F., 1961, P AM MATH SOC, V12, P638, DOI DOI 10.1090/S0002-9939-1961-0126470-X
[2]
Baer Reinhold, 1937, DUKE MATH J, V3, P68
[3]
Bass H., 1964, J ALGEBRA, V1, P367
[4]
BOURBAKI N, 1961, ELEMENTS MATH FASCIC, pCH1
[5]
CARTAN H, 1956, HOMOLOGICAL ALGEBRA
[6]
Chase S U., 1960, T AM MATH SOC, V97, P457, DOI 10.1090/S0002-9947-1960-0120260-3
[7]
Griffith P., 1970, INFINITE ABELIAN GRO
[8]
GRUSON L, 1971, INVENT MATH, V13, P1