TY - JOUR AU - A. G. Pinus TI - On the property of being a semilattice for countable imbeddability skeletons of discriminator varieties JO - Matematičeskie trudy PY - 1996 SP - 119 EP - 125 VL - 30 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MT_1996_30_a7/ LA - ru ID - MT_1996_30_a7 ER -