Voir la notice de l'article provenant de la source eLibrary of Mathematical Institute of the Serbian Academy of Sciences and Arts
@article{PIM_1977_N_S_21_35_a7, author = {Ljubomir \'Ciri\'c}, title = {Quasi-Contractions {In} {Banach} {Spaces}}, journal = {Publications de l'Institut Math\'ematique}, pages = {41 }, publisher = {mathdoc}, volume = {_N_S_21}, number = {35}, year = {1977}, url = {http://geodesic.mathdoc.fr/item/PIM_1977_N_S_21_35_a7/} }
Ljubomir Ćirić. Quasi-Contractions In Banach Spaces. Publications de l'Institut Mathématique, _N_S_21 (1977) no. 35, p. 41 . http://geodesic.mathdoc.fr/item/PIM_1977_N_S_21_35_a7/