@congreso_internacional{500, author = {Enrique Herrera-Viedma and Carlos Porcel and A.G López and S Alonso and A Zafra}, title = {Improving the User-System Interaction in a Web Multi-agent System Using Fuzzy Multi-granular Linguistic Information}, year = {2006}, volume = {4027}, pages = {390-403}, month = {June 7-10th}, publisher = {Proceedings of the 7th International Conference on Flexible Query Answering Systems (FQAS 2006), Lecture Notes in Computer Science. Springer}, address = {Milan (Italy)}, }