<?xml version="1.0"?>
<dblp>
<article key="journals/dke/LopezCGV09" mdate="2009-01-14">
<author>Mar&#237;a Teresa G&#243;mez L&#243;pez</author>
<author>Rafael Ceballos</author>
<author>Rafael M. Gasca</author>
<author>Carmelo Del Valle</author>
<title>Developing a labelled object-relational constraint database architecture for the projection operator.</title>
<pages>146-172</pages>
<year>2009</year>
<volume>68</volume>
<journal>Data Knowl. Eng.</journal>
<number>1</number>
<ee>http://dx.doi.org/10.1016/j.datak.2008.09.002</ee>
<url>db/journals/dke/dke68.html#LopezCGV09</url>
</article>
</dblp>
