TY - JOUR AU - James Osterburg TI - A note on perfect modules over crossed products JO - Revista colombiana de matematicas PY - 1976 SP - 69 EP - 74 VL - 10 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/RCM_1976__10_181648/ ID - RCM_1976__10_181648 ER -