@article{characterizingandextendinganswerset,
  title = {Characterizing and Extending Answer Set Semantics using Possibility Theory},
  author = {Kim Bauters and Steven Schockaert and Martine De Cock and Dirk Vermeir},
  year = {2013},
  eprint = {1312.0127},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1312.0127v1},
}