<?xml version="1.0"?>
<dblp>
<article key="journals/tods/KarrasM08" mdate="2008-09-01">
<author>Panagiotis Karras</author>
<author>Nikos Mamoulis</author>
<title>Hierarchical synopses with optimal error guarantees.</title>
<year>2008</year>
<volume>33</volume>
<journal>ACM Trans. Database Syst.</journal>
<number>3</number>
<ee>http://doi.acm.org/10.1145/1386118.1386124</ee>
<url>db/journals/tods/tods33.html#KarrasM08</url>
</article>
</dblp>
