Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{RCM_1992__26_1-4_181858, author = {Ivan Kupka}, title = {A {Banach} fixed point theorem for topolocical spaces}, journal = {Revista colombiana de matematicas}, pages = {97--102}, publisher = {mathdoc}, volume = {26}, number = {1-4}, year = {1992}, url = {http://geodesic.mathdoc.fr/item/RCM_1992__26_1-4_181858/} }
Ivan Kupka. A Banach fixed point theorem for topolocical spaces. Revista colombiana de matematicas, Tome 26 (1992) no. 1-4, pp. 97-102. http://geodesic.mathdoc.fr/item/RCM_1992__26_1-4_181858/