@Article{ 
  mig99,
  author = { Migliorini, Anna Paola },
  title = { Everywhere regularity for a class of elliptic systems with $p$, $q$ growth conditions },
  journal = { Rend. Ist. Mat. Trieste },
  year = { 1999 },
  volume = { XXXI },
  pages = { 203-234 },
  URL = { http://cvgmt.sns.it/paper/905/ },
  note = { cvgmt preprint}
}