title: xcerpt and visxcerpt : from pattern-based to visual querying of xml and semistructured data. authors: sacha berger , christoph wieser , sebastian schaffert , françois bry. venue: vldb. year: 2003
title: querying structured text in an xml database. authors: shurug al-khalifa , cong yu , h. v. jagadish. venue: international conference on management of data. year: 2003