@article{03606959, title = {Hammerstein integral equations with indefinite kernel.}, journal = {International Journal of Mathematics and Mathematical Sciences}, volume = {1}, year = {1978}, pages = {187-201}, doi = {10.1155/S0161171278000228}, zbl = {0391.45007}, language = {en}, url = {http://dml.mathdoc.fr/item/03606959} }
Castro, Alfonso. Hammerstein integral equations with indefinite kernel.. International Journal of Mathematics and Mathematical Sciences, Tome 1 (1978) pp. 187-201. doi : 10.1155/S0161171278000228. http://gdmltest.u-ga.fr/item/03606959/