AptB94'

BibTeX

@article{DBLP:journals/jlp/AptB94,
  author    = {Krzysztof R. Apt and
               Roland N. Bol},
  title     = {Logic Programming and Negation: A Survey},
  journal   = {J. Log. Program.},
  volume    = {19/20},
  year      = {1994},
  pages     = {9-71},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}