TY - JOUR AU - A. G. Pinus TI - Countable skeletons of embeddability of discriminator JO - Algebra i logika PY - 1989 SP - 597 EP - 607 VL - 28 IS - 5 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/AL_1989_28_5_a8/ LA - ru ID - AL_1989_28_5_a8 ER -