@conference{HMP06,
  title = "Resources required for preparing graph states",
  author = "P. Hoyer, M. Mhalla, S. Perdrix",
  year = "2006",
  booktitle = "Proceedings of ISAAC'06. Lecture Notes in Computer Science",
  journal = "ISAAC'06. Lecture Notes in Computer Science 4288, pages 638-649.",
  pages = "638-649",
  url = "http://www.pps.jussieu.fr/~perdrix/publi/Perdrix-Publications/HMP06-GraphState-ISAAC06.pdf",
  volume = "4288",
}