共 4 条
[1]
[Anonymous], 1978, B LOND MATH SOC, V10, P287
[2]
NORTHCOTT DG, 1968, LESSONS RINGS MODULE
[3]
Sharpe D.W., 1972, INJECTIVE MODULES
[4]
STEPHENSON W, 1974, P LOND MATH SOC, V28, P291