@Article{ 
  cupguimas02,
  author = { Cupini, Giovanni and Guidorzi, Marcello and Mascolo, Elvira },
  title = { Regularity of minimizers of vectorial integrals with p-q growth },
  journal = { Nonlinear Anal. },
  year = { 2003 },
  volume = { 54 },
  number = { 4 },
  pages = { 591-616 },
  URL = { http://cvgmt.sns.it/paper/1041/ },
  note = { cvgmt preprint}
}