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: r-tree based indexing of now-relative bitemporal data 1998.0. authors: r bliujute , cs jensen , s saltenis , g slivinskas. venue: vldb ,. year: nan