@article{JCA_2007_14_2_JCA_2007_14_2_a12,
     author = {Z. P\'ales and V. Zeidan},
     title = {Infinite {Dimensional} {Clarke} {Generalized} {Jacobian}},
     journal = {Journal of convex analysis},
     pages = {433--454},
     publisher = {mathdoc},
     volume = {14},
     number = {2},
     year = {2007},
     url = {http://geodesic.mathdoc.fr/item/JCA_2007_14_2_JCA_2007_14_2_a12/}
}