TY - JOUR AU - M. V. Volkov TI - Semigroup varieties with a modular subvariety lattice JO - Doklady Akademii Nauk PY - 1992 SP - 409 EP - 413 VL - 326 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1992_326_3_a3/ LA - ru ID - DAN_1992_326_3_a3 ER -