<?xml version="1.0"?>
<dblp>
<article key="journals/ipm/Gerson72" mdate="2006-03-07">
<author>Gordon M. Gerson</author>
<title>A computer-aided classification and retrieval system for united states patents.</title>
<pages>137-150</pages>
<year>1972</year>
<volume>8</volume>
<journal>Information Storage and Retrieval</journal>
<number>3</number>
<ee>http://dx.doi.org/10.1016/0020-0271(72)90042-3</ee>
<url>db/journals/ipm/ipm8.html#Gerson72</url>
</article>
</dblp>
