@article{BDHKO11,
  title = "DAG-Width and Parity Games",
  author = "Dietmar Berwanger and Anuj Dawar and Paul Hunter and Stephan Kreutzer and Jan Obdr\v{z}alek",
  year = "2011",
  journal = "Journal of Combinatorial Theory, Series B",
  note = "Submitted",
}