TY - JOUR AU - D. A. Bredikhin TI - On bases of identities for varieties of groupoids of relations JO - Čebyševskij sbornik PY - 2018 SP - 26 EP - 34 VL - 19 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/CHEB_2018_19_1_a2/ LA - ru ID - CHEB_2018_19_1_a2 ER -