TY - JOUR AU - G. B. Lungu TI - On the radicals of semigroup rings of 2-nilpotent semigroups JO - Fundamentalʹnaâ i prikladnaâ matematika PY - 1998 SP - 461 EP - 466 VL - 4 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/FPM_1998_4_1_a26/ LA - ru ID - FPM_1998_4_1_a26 ER -