@Article{ 
  mai,
  author = { Mainini, Edoardo },
  title = { A global uniqueness result for an evolution problem arising in superconductivity },
  journal = { Boll. Unione Mat. Ital. (9) },
  year = { 2009 },
  volume = { 2 },
  number = { 2 },
  pages = { 509-528 },
  URL = { http://cvgmt.sns.it/paper/660/ },
  note = { cvgmt preprint}
}