<?xml version="1.0"?>
<dblp>
<article key="journals/tois/BaralisGQT07" mdate="2007-11-06">
<author>Elena Baralis</author>
<author>Paolo Garza</author>
<author>Elisa Quintarelli</author>
<author>Letizia Tanca</author>
<title>Answering XML queries by means of data summaries.</title>
<year>2007</year>
<volume>25</volume>
<journal>ACM Trans. Inf. Syst.</journal>
<number>3</number>
<ee>http://doi.acm.org/10.1145/1247715.1247716</ee>
<url>db/journals/tois/tois25.html#BaralisGQT07</url>
</article>
</dblp>
