Salvatore Rinzivillo Franco Turini Vania Bogorny Christine Körner Bart Kuijpers Michael May Knowledge Discovery from Geographical Data. 243-265 2008 Mobility, Data Mining and Privacy http://dx.doi.org/10.1007/978-3-540-75177-9_10 series/springer/2008mdmp db/series/springer/mdmp2008.html#RinzivilloTBKKM08