@inproceedings{tp3643,
  title = {The use of Linguistic Information in Operational Research},
  author = {Francisco Herrera and Enrique Herrera-Viedma and Luis Martínez},
  year = {2001},
  publisher = {Joint 9th IFSA World Congress and 20th NAFIPS International Conference},
  pages = {857-862},
  keywords = {congreso_internacional},
}