@article{directedreductionalgorithmsand,
  title = {Directed Reduction Algorithms and Decomposable Graphs},
  author = {Ross D. Shachter and Stig K. Andersen and Kim-Leng Poh},
  year = {2013},
  eprint = {1304.1110},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1304.1110v1},
}