Shepherdson91'

BibTeX

@article{DBLP:journals/jlp/Shepherdson91,
  author    = {John C. Shepherdson},
  title     = {Unsolvable Problems for SLDNF Resolution},
  journal   = {J. Log. Program.},
  volume    = {10},
  number    = {1/2/3{\&}4},
  year      = {1991},
  pages     = {19-22},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}