@article{00824553, title = {A new approach to a hyperspace theory.}, journal = {Journal of Convex Analysis}, volume = {1}, year = {1994}, pages = {173-193}, zbl = {0839.54009}, language = {en}, url = {http://dml.mathdoc.fr/item/00824553} }
Lucchetti, Roberto; Pasquale, Angela. A new approach to a hyperspace theory.. Journal of Convex Analysis, Tome 1 (1994) pp. 173-193. http://gdmltest.u-ga.fr/item/00824553/