Viorica Botea Daniel Mallett Mario A. Nascimento Jörg Sander PIST: An Efficient and Practical Indexing Technique for Historical Spatio-Temporal Point Data. 143-168 2008 12 GeoInformatica 2 http://dx.doi.org/10.1007/s10707-007-0030-3 db/journals/geoinformatica/geoinformatica12.html#BoteaMNS08