title: xcerpt and visxcerpt : from pattern-based to visual querying of xml and semistructured data. authors: s berger , f bry , s schaffert , c wieser. venue: vldb. year: 2003
title: xcerpt and visxcerpt : from pattern-based to visual querying of xml and semistructured data (. authors: s berger , f bry , s schaffert , c wieser. venue: nan. year: nan