TY - JOUR AU - A. V. Tishchenko TI - On different definitions of wreath product of semigroup varieties JO - Fundamentalʹnaâ i prikladnaâ matematika PY - 1996 SP - 233 EP - 249 VL - 2 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/FPM_1996_2_1_a11/ LA - ru ID - FPM_1996_2_1_a11 ER -