@Misc{ 
  magman09a,
  author = { Magni, Annibale and Mantegazza, Carlo },
  title = { Curves Homothetically Shrinking by Curvature },
  journal = {  },
  year = { 2009 },
  pages = {  },
  URL = { http://cvgmt.sns.it/paper/51/ },
  note = { cvgmt preprint}
}