title: r-tree based indexing of now-relative bitemporal data r bliujute , c jensen , s saltenis , g slivinskas vldb. authors: nan. venue: nan. year: 1998.0
title: indexing of now-relative spatio-bitemporal data s å altenis , cs jensen. authors: nan. venue: the vldb journal the international journal on very large & hellip ; ,. year: 2002.0