@article{JCA_2009_16_1_JCA_2009_16_1_a4,
     author = {F. Solombrino},
     title = {Quasistatic {Evolution} {Problems} for {Nonhomogeneous} {Elastoplastic} {Materials}},
     journal = {Journal of convex analysis},
     pages = {89--119},
     publisher = {mathdoc},
     volume = {16},
     number = {1},
     year = {2009},
     url = {http://geodesic.mathdoc.fr/item/JCA_2009_16_1_JCA_2009_16_1_a4/}
}