@inproceedings{KreutzerOrdyniak08,
  title = "Digraph Decompositions and Monotonocity in Digraph Searching",
  author = "Stephan Kreutzer and Sebastian Ordyniak",
  year = "2008",
  booktitle = "34th International Workshop on Graph-Theoretic Concepts in Computer Science (WG)",
  journal = "34th International Workshop on Graph-Theoretic Concepts in Computer Science (WG)",
  url = "http://web.comlab.ox.ac.uk/people/Stephan.Kreutzer/Publications/08-wg-final.pdf",
}