@article{Wahrenburg2009,
  author    = {Mark Wahrenburg},
  title     = {Trading system competition and market-maker competition},
  journal   = {BIS Papers},
  volume    = {1},
  number    = {7},
  pages     = {53 -- 60},
  url       = {http://www.bis.org/publ/bppdf/bispap07.htm},
  year      = {2009},
}