<?xml version="1.0"?>
<dblp>
<article key="journals/ai/Nagel87" mdate="2003-11-19">
<author>Hans-Hellmut Nagel</author>
<title>On the Estimation of Optical Flow: Relations between Different Approaches and Some New Results.</title>
<pages>299-324</pages>
<year>1987</year>
<volume>33</volume>
<journal>Artif. Intell.</journal>
<number>3</number>
<url>db/journals/ai/ai33.html#Nagel87</url>
</article>
</dblp>
