@proceedings {4067, title = {Semantic Microaggregation for the Anonymization of Query Logs}, volume = {6344}, year = {2011}, month = {22/09/2010}, pages = {127-137}, publisher = {Springer}, author = {Arnau Erola and Jordi Castell{\`a}-Roca and Guillermo Navarro-Arribas and Vicen{\c c} Torra} }