TY - JOUR AU - V. T. Markov TI - On PI-rings and semiprime rings that have an exact module JO - Algebra i logika PY - 1997 SP - 562 EP - 572 VL - 36 IS - 5 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/AL_1997_36_5_a5/ LA - ru ID - AL_1997_36_5_a5 ER -