title: speeding up construction of pmr quadtree-based spatial indexes vldb j.. authors: gísli r. hjaltason , hanan samet. venue: nan. year: 2002.0
title: speeding up construction of pmr quadtree-based spatial indexes gisli r. hjaltason , hanan samet the vldb journal -- the international journal on very large data bases 2002. authors: nan. venue: nan. year: nan