title: from tree patterns to generalized tree patterns : on efficient evaluation of xquery. authors: z chen , h jagadish , l lakshmanan , s paparizos. venue: vldb. year: 2003
title: from tree patterns to generalized tree patterns : on efficient evaluation of xquery. authors: z chen , hv jagadish , lvs lakshmanan , s paparizos. venue: nan. year: 2003.0