Voir la notice de l'article provenant de la source Czech Digital Mathematics Library
@article{CMUC_1968__9_1_a13, author = {Fu\v{c}{\'\i}k, Svatopluk}, title = {Fixed point theorems for sum of nonlinear mappings}, journal = {Commentationes Mathematicae Universitatis Carolinae}, pages = {133--143}, publisher = {mathdoc}, volume = {09}, number = {1}, year = {1968}, mrnumber = {0233245}, zbl = {0181.15201}, language = {en}, url = {http://geodesic.mathdoc.fr/item/CMUC_1968__9_1_a13/} }
Fučík, Svatopluk. Fixed point theorems for sum of nonlinear mappings. Commentationes Mathematicae Universitatis Carolinae, Tome 09 (1968) no. 1, pp. 133-143. http://geodesic.mathdoc.fr/item/CMUC_1968__9_1_a13/