@Article{ 
  belmug03,
  author = { Bellettini, Giovanni and Mugnai, Luca },
  title = { Characterization and representation of the lower semicontinuous envelope of the elastica functional    },
  journal = { Ann. Inst. H. Poincare`, Anal. Non Lin. },
  year = { 2004 },
  volume = { 6 },
  number = { 21 },
  pages = { 839-880 },
  URL = { http://cvgmt.sns.it/paper/1451/ },
  note = { cvgmt preprint}
}