@Article{ 
  bragelsig,
  author = { Braides, Andrea and Gelli, Maria Stella and Sigalotti, Mario },
  title = { The passage from non-convex discrete systems to variational problems in Sobolev spaces: the one-dimensional case },
  journal = { Proc. Steklov. Math. Inst. },
  year = { 2002 },
  volume = { 236 },
  pages = { 395-414 },
  URL = { http://cvgmt.sns.it/paper/1072/ },
  note = { cvgmt preprint}
}