@inproceedings{BoellaBroersenTorrePRIMA2008,
  author    = {Guido Boella and
               Jan Broersen and
               Leendert van der Torre},
  title     = {Reasoning about Constitutive Norms, Counts-As Conditionals,
               Institutions, Deadlines and Violations},
  booktitle = {Intelligent Agents and Multi-Agent Systems, 11th Pacific
               Rim International Conference on Multi-Agents, PRIMA 2008,
               Hanoi, Vietnam, December 15-16, 2008. Proceedings},
  series    = {Lecture Notes in Computer Science},
  volume    = {5357},
  editor    = {The Duy Bui and
               Tuong Vinh Ho and
               Quang-Thuy Ha},
  publisher = {Springer},
  year      = {2008},
  pages     = {86-97},
  ee        = {http://dx.doi.org/10.1007/978-3-540-89674-6_12},
  crossref  = {DBLP:conf/prima/2008},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}