共 5 条
[1]
GETU S, 1974, COMM ALGEBRA, V2, P35
[2]
HENTZEL IR, TO BE PUBLISHED
[4]
RODABAUGH DJ, 1974, P AM MATH SOC, V46, P157
[5]
THEDY A, 1972, 11 AARH U MAT I PREP