TY - JOUR AU - Terence E. Stanley TI - Generalizations of the Classes of Nilpotent and Hypercentral Groups. JO - Mathematische Zeitschrift PY - 1970 SP - 180 EP - 190 VL - 118 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MZ_1970__118_171451/ ID - MZ_1970__118_171451 ER -