TY - JOUR AU - E. M. Vechtomov AU - A. A. Petrov TI - Variety of semirings generated by two-element semirings with commutative idempotent multiplication JO - Čebyševskij sbornik PY - 2014 SP - 12 EP - 30 VL - 15 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/CHEB_2014_15_3_a1/ LA - ru ID - CHEB_2014_15_3_a1 ER -