@Article{ DalSca13, author = { Dal Maso, Gianni and Scala, Riccardo }, title = { Quasistatic evolution in perfect plasticity as limit of dynamic processes }, journal = { Journal of Dynamics and Differential Equations }, year = { 2014 }, volume = { 26 }, number = { 4 }, pages = { 915-954 }, URL = { http://cvgmt.sns.it/paper/2206/ }, note = { cvgmt preprint} }