@Article{ AlDeGaPo13, author = { Alicandro, Roberto and De Luca, Lucia and Garroni, Adriana and Ponsiglione, Marcello }, title = { Metastability and dynamics of discrete topological singularities in two dimensions: a $\Gamma$-convergence approach }, journal = { Archive Rational Mech. Anal. }, year = { 2014 }, volume = { 214 }, pages = { 269-330 }, URL = { http://cvgmt.sns.it/paper/2215/ }, note = { cvgmt preprint} }