@Misc{ 
  baltyswar07,
  author = { Balogh, Zoltan and Tyson, Jeremy and Warhurst, Ben },
  title = { Sub-Riemanian vs. Euclidean dimension comparison and fractal geometry on Carnot groups },
  journal = {  },
  year = { 2007 },
  pages = {  },
  URL = { http://cvgmt.sns.it/paper/361/ },
  note = { cvgmt preprint}
}