@Article{ laztoa11, author = { Giuliano Lazzaroni and Rodica Toader }, title = { Some remarks on the viscous approximation of crack growth }, journal = { Discrete Contin. Dyn. Syst. Ser. S (DCDS-S) }, year = { 2013 }, volume = { 6 }, number = { 1 }, pages = { 131-146 }, }