@inproceedings{hyytia-infocom-2013,
  title = {Criticality of Large Delay Tolerant Networks via Directed Continuum Percolation in Space-Time},
  author = {Esa Hyyti{\"a} and J{\"o}rg Ott},
  booktitle = {{IEEE} {INFOCOM} mini-conference},
  month = {Apr.},
  year = {2013},
  address = {Turin, Italy},
  url = {http://arxiv.org/abs/1208.0505},
}