@Misc{ 
  deld,
  author = { Delladio, Silvano },
  title = { A result about $C^2$-rectifiability of one-dimensional rectifiable sets. Application to a class of one-dimensional integral currents },
  journal = { Boll. Un. Matem. Italiana },
  year = { 2006 },
  pages = {  },
  URL = { http://cvgmt.sns.it/paper/1060/ },
  note = { cvgmt preprint}
}