@Misc{ 
  conmag05,
  author = { Conti, Sergio and Maggi, Francesco },
  title = { Confining thin elastic sheets and folding paper },
  journal = { Archive for Rational Mechanics and Analysis },
  year = { 2005 },
  pages = {  },
  URL = { http://cvgmt.sns.it/paper/1532/ },
  note = { cvgmt preprint}
}