TY - JOUR AU - M. V. Sapir TI - Problems of Burnside type and the finite basis property in varieties of semigroups JO - Izvestiya. Mathematics PY - 1988 SP - 295 EP - 314 VL - 30 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/IM2_1988_30_2_a5/ LA - en ID - IM2_1988_30_2_a5 ER -