@Misc{ 
  PinSpe15,
  author = { Pinamonti, Andrea and Speight, Gareth },
  title = { A Measure Zero Universal Differentiability Set in the Heisenberg Group },
  journal = {  },
  year = { 2015 },
  pages = {  },
  URL = { http://cvgmt.sns.it/paper/2710/ },
  note = { cvgmt preprint}
}