Paper  bibtex   

@article{ Delgado1993b,
  title = {{Breve historia de la L�gica Fuzzy}},
  author = {Delgado, M and Verdegay, JL and Vila, MA},
  journal = {‥. : Ciencia, Pensamiento y ‥.},
  year = {1993},
  url = {http://europa.sim.ucm.es/compludoc/AA?articuloId=490263}
}