<?xml version="1.0"?>
<dblp>
<article key="journals/tcs/ChengN98" mdate="2003-11-19">
<author>Allan Cheng</author>
<author>Mogens Nielsen</author>
<title>Open Maps, Behavioural Equivalences, and Congruences.</title>
<pages>87-112</pages>
<year>1998</year>
<volume>190</volume>
<journal>Theor. Comput. Sci.</journal>
<number>1</number>
<url>db/journals/tcs/tcs190.html#ChengN98</url>
<ee>http://dx.doi.org/10.1016/S0304-3975(97)00085-6</ee>
</article>
</dblp>
