title: from tree patterns to generalized tree patterns : on efficient evaluation of xquery vldb 2003. authors: z chen , h jagadish , l lakshmanan , s paparizos. venue: nan. year: nan
title: from tree patterns to generalized tree patterns : on efficient evaluation of xquery zchvjlvs lakshmanan , s paparizos. authors: nan. venue: proceedings of the 29th very large data base conference ,. year: nan