@Article{ 
  colves03,
  author = { Colombo, Fabrizio and Vespri, Vincenzo },
  title = { A semilinear integrodifferential inverse problem },
  journal = { Evolution Equation. Editors :J. Golstein, R. Nagel and S. Romanelli },
  year = { 2003 },
  volume = { 234 },
  pages = { 91-104 },
  URL = { http://cvgmt.sns.it/paper/1479/ },
  note = { cvgmt preprint}
}