TY - JOUR AU - M. Hegedüs TI - Some Extensions Of Fixed Point Theorems Concerning Ćirić's Quasi-Contraction Mappings JO - Publications de l'Institut Mathématique PY - 1980 SP - 77 VL - _N_S_27 IS - 41 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/PIM_1980_N_S_27_41_a12/ ID - PIM_1980_N_S_27_41_a12 ER -