@revista_internacional{220,
  author = {Luis Martínez and Jun Liu and J.B Yang and Francisco Herrera},
  title = {A Multi-Granular Hierarchical Linguistic Model for Design Evaluation Based on Safety and Cost Analysis},
  year = {2005},
  journal = {International Journal of Intelligent Systems},
  volume = {20},
  number = {12},
  pages = {1161-1194},
  publisher = {Wiley},
  url = {http://onlinelibrary.wiley.com/doi/10.1002/int.20107/abstract},
}