@conference{AoQconf,
  title = "Modelling and Symmetry Breaking for 'Peaceable Armies of Queens'",
  author = "Karen Petrie with Barbara Smith and Ian Gent",
  year = "2004",
  journal = "In Proc. CP-AI-OR 2004",
  pages = "271-286",
  publisher = "Springer",
  series = "LNCS 3011",
  url = "http://www.springerlink.com/content/reuug5b87uravx5l/?p=b9c9deda06d445628f73b672fa68f905&pi=18",
}