@inproceedings{DBLP:conf/coling/SanchezHM90,
  author    = {Arantza D\'{\i}az de Ilarraza S{\'a}nchez and
               H. Rodr\'{\i}guez Hontoria and
               Mar\'{\i}a Felisa Verdejo Maillo},
  title     = {A Mechanism for ellipsis resolution in dialogued systems},
  booktitle = {COLING},
  year      = {1990},
  pages     = {452-454},
  ee        = {http://aclweb.org/anthology/C90-3102},
  crossref  = {DBLP:conf/coling/1990},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}

@proceedings{DBLP:conf/coling/1990,
  title     = {13th International Conference on Computational Linguistics,
               COLING 1990, University of Helsinki, Finland, August 20-25,
               1990},
  booktitle = {COLING},
  year      = {1990},
  ee        = {http://aclweb.org/anthology/C/C90/},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}