@Misc{ daltoa08, author = { Dal Maso, Gianni and Toader, Rodica }, title = { Quasistatic crack growth in elasto-plastic materials: the two-dimensional case }, journal = { Arch. Ration. Mech. Anal. }, year = { 2009 }, pages = { }, URL = { http://cvgmt.sns.it/paper/984/ }, note = { cvgmt preprint} }