<?xml version="1.0"?>
<dblp>
<article key="journals/tcs/DuB89" mdate="2003-11-19">
<author>Ding-Zhu Du</author>
<author>Ronald V. Book</author>
<title>On Inefficient Special Cases of NP-Complete Problems.</title>
<pages>239-252</pages>
<year>1989</year>
<volume>63</volume>
<journal>Theor. Comput. Sci.</journal>
<number>3</number>
<url>db/journals/tcs/tcs63.html#DuB89</url>
</article>
</dblp>
