@article{01780281, title = {Stationary points for set-valued mappings on two metric spaces.}, journal = {International Journal of Mathematics and Mathematical Sciences}, volume = {25}, year = {2001}, pages = {427-432}, doi = {10.1155/S0161171201006755}, zbl = {0993.54038}, language = {en}, url = {http://dml.mathdoc.fr/item/01780281} }
Liu, Zeqing; Liu, Qingtao; Kang, Shin Min. Stationary points for set-valued mappings on two metric spaces.. International Journal of Mathematics and Mathematical Sciences, Tome 25 (2001) pp. 427-432. doi : 10.1155/S0161171201006755. http://gdmltest.u-ga.fr/item/01780281/