Evaggelia Pitoura Ioannis Fudos Distributed Location Databases for Tracking Highly Mobile Objects. 75-91 2001 44 Comput. J. 2 http://www3.oup.co.uk/computer_journal/hdb/Volume_44/Issue_02/440075.sgm.abs.html db/journals/cj/cj44.html#PitouraF01