LudwigW91'

BibTeX

@article{DBLP:journals/dke/LudwigW91,
  author    = {Thomas Ludwig and
               Bernd Walter},
  title     = {EFTA: A Database Retrieval Algebra for Feature-Terms},
  journal   = {Data Knowl. Eng.},
  volume    = {6},
  year      = {1991},
  pages     = {125-149},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}