TY - JOUR AU - A. A. Bovdi AU - A. StrojnowskI TI - On the multiplicative subgroup of a group ring JO - Banach Center Publications PY - 1990 SP - 13 EP - 16 VL - 26 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/-26-1-13-16/ DO - 10.4064/-26-1-13-16 LA - en ID - 10_4064__26_1_13_16 ER -