TY - JOUR AU - I.S. Ponizovskii TI - On irreducible matrix semigroups. JO - Semigroup forum PY - 1982 SP - 117 EP - 148 VL - 24 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/SF_1982__24_134543/ ID - SF_1982__24_134543 ER -