@Article{ 
  bracicnit07,
  author = { Brandolini, Barbara and Cicalese, Marco and Nitsch, Carlo and Trombetti, Cristina },
  title = { A sharp estimate of the extinction time for the mean-curvature flow },
  journal = { Appl. Math. Lett. },
  year = { 2007 },
  volume = { 20 },
  number = { 5 },
  pages = { 551-557 },
  URL = { http://cvgmt.sns.it/paper/187/ },
  note = { cvgmt preprint}
}