@Misc{ 
  Olb15b,
  author = { Olbermann, Heiner },
  title = { Energy scaling law for a single disclination in a thin elastic sheet },
  journal = {  },
  year = { 2015 },
  pages = {  },
  URL = { http://cvgmt.sns.it/paper/4387/ },
  note = { cvgmt preprint}
}