<?xml version="1.0"?>
<dblp>
<article key="journals/njc/DahlOB98" mdate="2004-01-14">
<author>Ole-Johan Dahl</author>
<author>Olaf Owe</author>
<author>Tore J. Bastiansen</author>
<title>Subtyping and Constructive Specification.</title>
<year>1998</year>
<volume>5</volume>
<journal>Nord. J. Comput.</journal>
<number>1</number>
<url>db/journals/njc/njc5.html#DahlOB98</url>
</article>
</dblp>
