@article{JCA_2012_19_4_JCA_2012_19_4_a3,
     author = {A. L. Dontchev and H. Frankowska},
     title = {Lyusternik-Graves {Theorem} and {Fixed} {Points} {II}},
     journal = {Journal of convex analysis},
     pages = {955--973},
     publisher = {mathdoc},
     volume = {19},
     number = {4},
     year = {2012},
     url = {http://geodesic.mathdoc.fr/item/JCA_2012_19_4_JCA_2012_19_4_a3/}
}