Paper  bibtex   

@Article{Delgadoc,
  Title                    = {{Fuzzy Optimization: Recent Advances, 1994}},
  Author                   = {Delgado, M and Kacprzyk, J and Verdegay, JL and Vila, MA},
  Journal                  = {Physica-Verlag, Heidelberg},

  File                     = {:C$\backslash$:/Users/virgilio/AppData/Roaming/Zotero/Zotero/Profiles/x4f9hvdg.default/zotero/storage/7CV5FPT8/citation.html:html},
  Url                      = {http://scholar.google.es/scholar?start=140\&q=author:"JL+verdegay"\&hl=es\&as\_sdt=0,5\#9}
}