@Article{ 
  baltysa,
  author = { Balogh, Zoltan and Tyson, Jeremy },
  title = { Hausdorff dimensions of self-similar and self-affine fractals in the Heisenberg group },
  journal = { Proc. London Math. Soc. },
  year = { 2005 },
  volume = { 95 },
  number = { 3 },
  pages = { 153-183 },
  URL = { http://cvgmt.sns.it/paper/1474/ },
  note = { cvgmt preprint}
}