title: an extensible notation for spatiotemporal index queries richard t. snodgrass , vassilis j. tsotras , christian s. jensen. authors: nan. venue: sigmod record. year: 1998.0
title: an extensible notation for spatiotemporal index queries acm sigmod record. authors: vassilis j. tsotras , christian s. jensen , richard thomas snodgrass. venue: nan. year: 1998.0