<?xml version="1.0"?>
<dblp>
<article key="journals/jal/KrumkeMNRRSW99" mdate="2002-01-03">
<author>Sven Oliver Krumke</author>
<author>Madhav V. Marathe</author>
<author>Hartmut Noltemeier</author>
<author>R. Ravi</author>
<author>S. S. Ravi</author>
<author>Ravi Sundaram</author>
<author>Hans-Christoph Wirth</author>
<title>Improving Minimum Cost Spanning Trees by Upgrading Nodes.</title>
<pages>92-111</pages>
<year>1999</year>
<volume>33</volume>
<journal>J. Algorithms</journal>
<number>1</number>
<url>db/journals/jal/jal33.html#KrumkeMNRRSW99</url>
</article>
</dblp>
