@Article{ bragel01, author = { Braides, Andrea and Gelli, Maria Stella }, title = { Continuum limits of discrete systems without convexity hypotheses. }, journal = { Math. Mech. Solids }, year = { 2002 }, volume = { 7 }, pages = { 41-66 }, URL = { http://cvgmt.sns.it/paper/1374/ }, note = { cvgmt preprint} }