@article{01268626, title = {A viability result in the upper semicontinuous case.}, journal = {Journal of Convex Analysis}, volume = {5}, year = {1998}, pages = {381-395}, zbl = {0920.34018}, language = {en}, url = {http://dml.mathdoc.fr/item/01268626} }
Gavioli, Andrea. A viability result in the upper semicontinuous case.. Journal of Convex Analysis, Tome 5 (1998) pp. 381-395. http://gdmltest.u-ga.fr/item/01268626/