title: semistructured und structured data in the web : going back and forth p atzeni , g mecca , p merialdo sigmod record 1997. authors: nan. venue: nan. year: nan
title: ni , g. mecca , and p. merialdo . semistructured und structured data in the web : going back and forth p atze sigmod record ,. authors: nan. venue: nan. year: nan