@article{JCA_1996_3_1_a2,
     author = {A. L. Dontchev},
     title = {The {Graves} {Theorem} {Revisited}},
     journal = {Journal of convex analysis},
     pages = {045--054},
     publisher = {mathdoc},
     volume = {3},
     number = {1},
     year = {1996},
     url = {http://geodesic.mathdoc.fr/item/JCA_1996_3_1_a2/}
}