<?xml version="1.0"?>
<dblp>
<article key="journals/dm/Gropp94" mdate="2007-07-06">
<author>Harald Gropp</author>
<title>Graph-like combinatorial structures in (r, 1)-designs.</title>
<pages>65-73</pages>
<year>1994</year>
<volume>134</volume>
<journal>Discrete Mathematics</journal>
<number>1-3</number>
<ee>http://dx.doi.org/10.1016/0012-365X(93)E0061-8</ee>
<url>db/journals/dm/dm134.html#Gropp94</url>
</article>
</dblp>
