@incollection{42,
  author = {Francisco Herrera and Enrique Herrera-Viedma and Luis Martínez and Carlos Porcel},
  title = {Information Gathering on the Internet Using a Distributed Intelligent Agent Model with Multi-Granular Linguistic Information},
  year = {2002},
  pages = {-},
  url = {http://www.springer.com/engineering/book/978-3-540-20180-9},
}