TY - JOUR AU - M. V. Schwidefsky TI - Existence of independent quasi-equational bases JO - Algebra i logika PY - 2019 SP - 769 EP - 803 VL - 58 IS - 6 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/AL_2019_58_6_a5/ LA - ru ID - AL_2019_58_6_a5 ER -