@Article{ 
  AlBoFrLu13,
  author = { Alibert, J.J. and Bouchitté, Guy and Fragalà, Ilaria and Lucardesi, Ilaria },
  title = { A nonstandard free boundary problem arising in the shape optimization of thin torsion rods },
  journal = { Interfaces and Free Boundaries },
  year = { 2013 },
  doi = { 10.4171/IFB/296 },
  volume = { 15 },
  number = { 1 },
  pages = { 95-119 },
  URL = { http://cvgmt.sns.it/paper/3999/ },
  note = { cvgmt preprint}
}