<?xml version="1.0"?>
<dblp>
<article key="journals/combinatorics/XuZ03" mdate="2004-10-05">
<author>Rui Xu</author>
<author>Cun-Quan Zhang</author>
<title>Nowhere-Zero 3-Flows in Squares of Graphs.</title>
<year>2003</year>
<volume>10</volume>
<journal>Electr. J. Comb.</journal>
<ee>http://www.combinatorics.org/Volume_10/Abstracts/v10i1r5.html</ee>
<url>db/journals/combinatorics/combinatorics10.html#XuZ03</url>
</article>
</dblp>
