@incollection{30,
  author = {Francisco Herrera and Francisco Mata and Luis Martínez and Luis Gonzaga Pérez and A.G López and S Alonso},
  title = {A Multi-granular Linguistic Hierarchical Model To Evaluate The Quality Of Web site Services},
  year = {2006},
  volume = {201},
  pages = {247-274},
  publisher = {Kahraman, Cengiz (Ed.)},
  url = {http://www.springer.com/engineering/computational+intelligence+and+complexity/book/978-3-540-33516-0},
}