@Article{ 
  belmug04,
  author = { Bellettini, Giovanni and Mugnai, Luca },
  title = { On the approximation of the elastica functional in radial symmetry },
  journal = { Calc. Var. Partial Differential Equations },
  year = { 2005 },
  volume = { 24 },
  pages = { 1-20 },
  URL = { http://cvgmt.sns.it/paper/465/ },
  note = { cvgmt preprint}
}