Voir la notice de l'article provenant de la source Czech Digital Mathematics Library
@article{CMUC_1970__11_4_a7, author = {Bur\'y\v{s}ek, Slavom{\'\i}r}, title = {On spectra of nonlinear operators}, journal = {Commentationes Mathematicae Universitatis Carolinae}, pages = {727--743}, publisher = {mathdoc}, volume = {11}, number = {4}, year = {1970}, mrnumber = {0288639}, zbl = {0207.14402}, language = {en}, url = {http://geodesic.mathdoc.fr/item/CMUC_1970__11_4_a7/} }
Burýšek, Slavomír. On spectra of nonlinear operators. Commentationes Mathematicae Universitatis Carolinae, Tome 11 (1970) no. 4, pp. 727-743. http://geodesic.mathdoc.fr/item/CMUC_1970__11_4_a7/