@InProceedings{birkedal06bsortings,
  author = 	 {Lars Birkedal and S\o ren Debois and Thomas Hildebrandt},
  title = 	 {Sortings for Reactive Systems},
  booktitle =    {CONCUR `06: Proceedings of the 17th International Conference
                  on Concurrency Theory},
  pages =	 {248--262},
  year =	 {2006},
  volume =	 {4137},
  series = 	 {Lecture Notes in Computer Science},
  publisher =	 {Springer-Verlag}
}