Patel-Schneider89'

BibTeX

@article{DBLP:journals/ai/Patel-Schneider89,
  author    = {Peter F. Patel-Schneider},
  title     = {Undecidability of Subsumption in NIKL},
  journal   = {Artif. Intell.},
  volume    = {39},
  number    = {2},
  year      = {1989},
  pages     = {263-272},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}