<?xml version="1.0"?>
<dblp>
<article key="journals/is/GomezHKV09" mdate="2009-09-03">
<author>Leticia I. G&#243;mez</author>
<author>Sofie Haesevoets</author>
<author>Bart Kuijpers</author>
<author>Alejandro A. Vaisman</author>
<title>Spatial aggregation: Data model and implementation.</title>
<pages>551-576</pages>
<year>2009</year>
<volume>34</volume>
<journal>Inf. Syst.</journal>
<number>6</number>
<ee>http://dx.doi.org/10.1016/j.is.2009.03.002</ee>
<url>db/journals/is/is34.html#GomezHKV09</url>
</article>
</dblp>
