TY - JOUR AU - Huq, S.A. AU - Aijaz, Kulsoom TI - Categorical investigation of $\Gamma $-graded $\Lambda $-algebras JO - Portugaliae mathematica PY - 1969 SP - 21 EP - 36 VL - 28 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/PORMA_1969__28_1_115078/ LA - en ID - PORMA_1969__28_1_115078 ER -