@Article{ 
  dapves02,
  author = { Da Prato, Giuseppe and Vespri, Vincenzo },
  title = { Maximal $L^p$ regularity for elliptic equations with unbounded coefficients },
  journal = { Non Linear Analysis },
  year = { 2002 },
  volume = { 49 },
  pages = { 747-755 },
  URL = { http://cvgmt.sns.it/paper/481/ },
  note = { cvgmt preprint}
}