title: re-tree : an efficient index structure for regular expressions chee yong chan , minos n. garofalakis , rajeev rastogi vldb j. 2003. authors: nan. venue: nan. year: nan
title: the a-tree : an index structure for high-dimensional spaces using relative approximation yasushi sakurai , masatoshi yoshikawa , shunsuke uemura , haruhiko kojima. authors: nan. venue: very large data bases. year: 2000.0