@article{GDZPPN00230144X, title = {A Leray-Schauder Theorem for a Class of Nonlinear Operators.}, journal = {Mathematische Annalen}, volume = {180}, year = {1969}, pages = {207-212}, zbl = {0167.44602}, url = {http://dml.mathdoc.fr/item/GDZPPN00230144X} }
EDMUNDS, D.E.; WEBB, J.R.L. A Leray-Schauder Theorem for a Class of Nonlinear Operators.. Mathematische Annalen, Tome 180 (1969) pp. 207-212. http://gdmltest.u-ga.fr/item/GDZPPN00230144X/