@article{00823386, title = {Existence of zeros via disconnectedness.}, journal = {Journal of Convex Analysis}, volume = {2}, year = {1995}, pages = {287-290}, zbl = {0838.47045}, language = {en}, url = {http://dml.mathdoc.fr/item/00823386} }
Ricceri, Biagio. Existence of zeros via disconnectedness.. Journal of Convex Analysis, Tome 2 (1995) pp. 287-290. http://gdmltest.u-ga.fr/item/00823386/