@Misc{ 
  BarCas15,
  author = { Bartolucci, Daniele and Castorina, Daniele },
  title = { Self gravitating cosmic strings and the Alexandrov's inequality for
  Liouville-type equations },
  journal = { Communications in Contemporary Mathematics },
  year = { 2015 },
  doi = { 10.1142/S0219199715500686 },
  pages = {  },
  URL = { http://cvgmt.sns.it/paper/3000/ },
  note = { cvgmt preprint}
}