Flexible Query Answering Systems 7th International Conference, FQAS 2006, Milan, Italy, June 7-10, 2006 - Legind Larsen, Henrik.; Legind Larsen, Henrik.; Pasi, Gabriella.; Pasi, Gabriella.; Ortiz-Arroyo, Daniel.; Ortiz-Arroyo, Daniel.; Andreasen, Troels.; Andreasen, Troels.; Christiansen, Henning.; Christiansen, Henning. (Springer Berlin Heidelberg : Imprint: Springer, 2006)