TY - JOUR AU - T. Poreda TI - On the geometrical properties of local diffeomorphisms in Banach spaces JO - Commentationes Mathematicae PY - 1989 SP - 71 EP - 77 VL - 29 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.14708/cm.v29i1.6257/ DO - 10.14708/cm.v29i1.6257 LA - pl ID - 10_14708_cm_v29i1_6257 ER -