@misc{Salamon2009:bounds,
  title = "Bounds on series-parallel slowdown",
  author = "Andr{\'a}s Z. Salamon and Vashti Galpin",
  year = "2009",
  howpublished = "arXiv:0904.4512",
  url = "http://arxiv.org/abs/0904.4512",
}