<?xml version="1.0"?>
<dblp>
<article key="journals/tods/FaginKPT08" mdate="2008-06-25">
<author>Ronald Fagin</author>
<author>Phokion G. Kolaitis</author>
<author>Lucian Popa</author>
<author>Wang Chiew Tan</author>
<title>Quasi-inverses of schema mappings.</title>
<year>2008</year>
<volume>33</volume>
<journal>ACM Trans. Database Syst.</journal>
<number>2</number>
<ee>http://doi.acm.org/10.1145/1366102.1366108</ee>
<url>db/journals/tods/tods33.html#FaginKPT08</url>
</article>
</dblp>
