@incollection{34,
  author = {Enrique Herrera-Viedma and Carlos Porcel and Francisco Herrera and Luis Martínez and A.G López},
  title = {Techniques to Improve Multi-Agent Systems for Searching and Mining the Web},
  year = {2005},
  volume = {5},
  pages = {463-486},
  publisher = {Springer},
  url = {http://www.springerlink.com/content/cxx6ppdkmreew50u/fulltext.pdf},
}