Paper  bibtex   

@article{ delgado_post-optimality_1993,
  title = {{Post-optimality analysis on the membership functions of a fuzzy linear programming problem}},
  author = {Delgado, M and Herrera, F and Verdegay, J L and Vila, M A},
  journal = {Fuzzy Sets and Systems},
  year = {1993},
  number = {3},
  pages = {289--297},
  volume = {53},
  file = {:C$\backslash$:/Users/virgilio/AppData/Roaming/Zotero/Zotero/Profiles/x4f9hvdg.default/zotero/storage/IWCFZIDN/016501149390400C.html:html},
  url = {http://www.sciencedirect.com/science/article/pii/016501149390400C}
}