TY - JOUR AU - A.V. Kelarev TI - Applications of epigroups to graded ring theory. JO - Semigroup forum PY - 1995 SP - 327 EP - 350 VL - 50 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/SF_1995__50_3_135391/ ID - SF_1995__50_3_135391 ER -