@Article{ gialus07, author = { Giacomini, Alessandro and Lussardi, Luca }, title = { Quasistatic evolution for a model in strain gradient plasticity }, journal = { SIAM-J. Math. Anal. }, year = { 2008 }, volume = { 40 }, number = { 3 }, pages = { 1201-1245 }, URL = { http://cvgmt.sns.it/paper/529/ }, note = { cvgmt preprint} }