@inbook {629, title = {Wireless Network Data Sources: Tracking and Synthesizing Trajectories}, booktitle = {Mobility, Data Mining and Privacy}, year = {2008}, pages = {73-100}, author = {Chiara Renso and Simone Puntoni and E. Frentzos and Andrea Mazzoni and Bart Moelans and Nikos Pelekis and F. Pini} }