<?xml version="1.0"?>
<dblp>
<article key="journals/tcs/KrumkeNMRRSW99" mdate="2003-11-19">
<author>Sven Oliver Krumke</author>
<author>Hartmut Noltemeier</author>
<author>Madhav V. Marathe</author>
<author>R. Ravi</author>
<author>S. S. Ravi</author>
<author>Ravi Sundaram</author>
<author>Hans-Christoph Wirth</author>
<title>Improving Spanning Trees by Upgrading Nodes.</title>
<pages>139-155</pages>
<year>1999</year>
<volume>221</volume>
<journal>Theor. Comput. Sci.</journal>
<number>1-2</number>
<url>db/journals/tcs/tcs221.html#KrumkeNMRRSW99</url>
<ee>http://dx.doi.org/10.1016/S0304-3975(99)00030-4</ee>
</article>
</dblp>
