@inproceedings{nqa1991-abductive,
  title = {Abductive Reasoning in Three-valued Logic for Knowledge Bases},
  author = {Mathieu, Philippe and Delahaye, Jean-Paul},
  booktitle = {Proceedings of the Workshop on Nonstandard Queries and Answers (NQA'91)},
  editor = {Demolombe, R. and Fariņas del Cerro, L. and Imielinski, T.},
  pages = {103-120},
  month = {Juillet},
  year = {1991},
  conference = {NQA'90 -- Toulouse (France) -- Juillet 1991},
  abstract = {No abstract},
  hal-id = {hal-00732040},
  x-genre = {workshopInternational},
  x-language = {EN},
  x-international-audience = {Yes},
  x-country = {FR},
  x-town = {Toulouse},
  x-timestamp = {2012-09-13},
  x-missing = {isbn,pdf,publisher,url}
}