@article{02204859,
title = {Existence of zeros for operators taking their values in the dual of a Banach space.},
journal = {Fixed Point Theory and Applications [electronic only]},
volume = {2004},
year = {2004},
pages = {187-194},
doi = {10.1155/S1687182004310028},
zbl = {1088.47506},
language = {en},
url = {http://dml.mathdoc.fr/item/02204859}
}
Ricceri, Biagio. Existence of zeros for operators taking their values in the dual of a Banach space.. Fixed Point Theory and Applications [electronic only], Tome 2004 (2004) pp. 187-194. doi : 10.1155/S1687182004310028. http://gdmltest.u-ga.fr/item/02204859/