TY - JOUR AU - N. Levine TI - On compactness and a generalization JO - Commentationes Mathematicae PY - 1976 SP - 89 EP - 96 VL - 19 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.14708/cm.v19i1.5842/ DO - 10.14708/cm.v19i1.5842 LA - pl ID - 10_14708_cm_v19i1_5842 ER -