@Article{ 
  gormag02,
  author = { Gori, Michele and Maggi, Francesco },
  title = { The common root of the geometric conditions in Serrin's lower semicontinuity theorem },
  journal = { Ann. Mat. Pura Appl. (4) },
  year = { 2005 },
  volume = { 184 },
  number = { 1 },
  pages = { 95-114 },
  URL = { http://cvgmt.sns.it/paper/1653/ },
  note = { cvgmt preprint}
}