TY - JOUR AU - B. Rzepecki TI - Some properties of the set of solutions of an operator equation in a Banach space JO - Commentationes Mathematicae PY - 1978 SP - 467 EP - 478 VL - 20 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.14708/cm.v20i2.5920/ DO - 10.14708/cm.v20i2.5920 LA - pl ID - 10_14708_cm_v20i2_5920 ER -