@Article{ 
  fremorpar04,
  author = { Freddi, Lorenzo and Morassi, Antonino and Paroni, Roberto },
  title = { Thin-walled beams: the case of the rectangular cross-section },
  journal = { Journal of Elasticity },
  year = { 2004 },
  volume = { 76 },
  pages = { 45-66 },
  URL = { http://cvgmt.sns.it/paper/113/ },
  note = { cvgmt preprint}
}