<?xml version="1.0"?>
<dblp>
<inproceedings key="conf/pods/Zaniolo82" mdate="2006-03-31">
<crossref>conf/pods/82</crossref>
<author>Carlo Zaniolo</author>
<title>Database Relations with Null Values.</title>
<pages>27-33</pages>
<year>1982</year>
<booktitle>PODS</booktitle>
<url>db/conf/pods/pods82.html#Zaniolo82</url>
<ee>http://doi.acm.org/10.1145/588111.588117</ee>
<ee>db/conf/pods/Zaniolo82.html</ee>
<cdrom>journals/anthology/cd1-3:PODS82/P027.PDF</cdrom>
<cdrom>journals/anthology/dvd1:text/1-3/PODS82/P027.PDF</cdrom>
<cite>...</cite>
<cite>journals/tods/Codd79</cite>
<cite>...</cite>
<cite>journals/ipl/Grant77</cite>
<cite>conf/vldb/ImielinskiL81</cite>
<cite>journals/tods/Lipski79</cite>
<cite>conf/vldb/Lien79</cite>
<cite>...</cite>
<cite>books/cs/Ullman80</cite>
<cite>conf/sigmod/Vassiliou79</cite>

<cite>journals/tods/Wong82</cite>
<cite>...</cite>
<cite>journals/jcss/Zaniolo84</cite>
</inproceedings>
</dblp>
