@article{IM2_2001_65_1_a6,
     author = {V. N. Solov'ev},
     title = {The subdifferential and the directional derivatives of the maximum of a~family of convex {functions.~II}},
     journal = {Izvestiya. Mathematics },
     pages = {99--121},
     publisher = {mathdoc},
     volume = {65},
     number = {1},
     year = {2001},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/IM2_2001_65_1_a6/}
}