TY - JOUR AU - E. G. Shul'geifer TI - On categorical equivalence of polysort algebra varieties to monosort algebra varieties JO - Fundamentalʹnaâ i prikladnaâ matematika PY - 1996 SP - 279 EP - 288 VL - 2 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/FPM_1996_2_1_a14/ LA - ru ID - FPM_1996_2_1_a14 ER -