TY - JOUR AU - B. M. Vernikov AU - V. Yu. Shaprynskii TI - Distributive elements of the lattice of semigroup varieties JO - Algebra i logika PY - 2010 SP - 303 EP - 330 VL - 49 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/AL_2010_49_3_a0/ LA - ru ID - AL_2010_49_3_a0 ER -