@article{DBLP:journals/tkde/PirotteRZ91,
  author    = {Alain Pirotte and
               Dominique Roelants and
               Esteban Zim{\'a}nyi},
  title     = {Controlled Generation of Intensional Answers},
  journal   = {IEEE Trans. Knowl. Data Eng.},
  volume    = {3},
  number    = {2},
  year      = {1991},
  pages     = {221-236},
  ee        = {http://doi.ieeecomputersociety.org/10.1109/69.88002},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}