<?xml version="1.0"?>
<dblp>
<article key="journals/jsyml/Takeuti91" mdate="2003-11-20">
<author>Gaisi Takeuti</author>
<title>A Second Order Version of S<sup>i</sup><sub>2</sub> and U<sup>1</sup><sub>2</sub>.</title>
<pages>1038-1063</pages>
<year>1991</year>
<volume>56</volume>
<journal>J. Symb. Log.</journal>
<number>3</number>
<url>db/journals/jsyml/jsyml56.html#Takeuti91</url>
</article>
</dblp>
