Mehmet Ercan Nergiz Maurizio Atzori Yücel Saygin Baris Güç Towards Trajectory Anonymization: a Generalization-Based Approach. 47-75 2009 2 Transactions on Data Privacy 1 http://www.tdp.cat/issues/abs.a020a09.php db/journals/tdp/tdp2.html#NergizASG09