@article{05121601, title = {On generalized differential quotients of set-valued maps.}, journal = {Rendiconti del Seminario Matematico}, volume = {63}, year = {2005}, pages = {357-362}, zbl = {1117.54031}, language = {en}, url = {http://dml.mathdoc.fr/item/05121601} }
Girejko, E. On generalized differential quotients of set-valued maps.. Rendiconti del Seminario Matematico, Tome 63 (2005) pp. 357-362. http://gdmltest.u-ga.fr/item/05121601/