title: capturing and querying multiple aspects of semistructured data. authors: curtis e. dyreson , michael h. böhlen , christian s. jensen. venue: vldb. year: 1999.0
title: constraints for semistructured data and xml peter buneman , wenfei fan , j &#233; r &#244; me sim &#233; on , scott weinstein acm sigmod record. authors: nan. venue: nan. year: 2001.0