<?xml version="1.0"?>
<dblp>
<article key="journals/eccc/Jukna08" mdate="2009-02-13">
<author>Stasys Jukna</author>
<title>Entropy of operators or why matrix multiplication is hard for small depth circuits.</title>
<year>2008</year>
<volume>15</volume>
<journal>Electronic Colloquium on Computational Complexity (ECCC)</journal>
<ee>http://eccc.hpi-web.de/eccc-reports/2008/TR08-019/index.html</ee>
<number>019</number>
<url>db/journals/eccc/eccc15.html#Jukna08</url>
</article>
</dblp>
