<?xml version="1.0"?>
<dblp>
<article key="journals/ejc/Keedwell05" mdate="2005-06-21">
<author>A. Donald Keedwell</author>
<title>Tests for loop nuclei and a new criterion for a Latin square to be group-based.</title>
<pages>111-116</pages>
<year>2005</year>
<volume>26</volume>
<journal>Eur. J. Comb.</journal>
<number>1</number>
<ee>http://dx.doi.org/10.1016/j.ejc.2004.01.005</ee>
<url>db/journals/ejc/ejc26.html#Keedwell05</url>
</article>
</dblp>
