<?xml version="1.0"?>
<dblp>
<article key="journals/siamcomp/CaiGHHSWW88" mdate="2002-01-03">
<author>Jin-yi Cai</author>
<author>Thomas Gundermann</author>
<author>Juris Hartmanis</author>
<author>Lane A. Hemachandra</author>
<author>Vivian Sewelson</author>
<author>Klaus W. Wagner</author>
<author>Gerd Wechsung</author>
<title>The Boolean Hierarchy I: Structural Properties.</title>
<pages>1232-1252</pages>
<year>1988</year>
<volume>17</volume>
<journal>SIAM J. Comput.</journal>
<number>6</number>
<url>db/journals/siamcomp/siamcomp17.html#CaiGHHSWW88</url>
</article>
</dblp>
