<?xml version="1.0"?>
<dblp>
<inproceedings key="conf/lics/Nguyen07" mdate="2007-07-23">
<author>Phuong Nguyen</author>
<title>Separating DAG-Like and Tree-Like Proof Systems.</title>
<pages>235-244</pages>
<year>2007</year>
<crossref>conf/lics/2007</crossref>
<booktitle>LICS</booktitle>
<ee>http://doi.ieeecomputersociety.org/10.1109/LICS.2007.42</ee>
<url>db/conf/lics/lics2007.html#Nguyen07</url>
</inproceedings>
</dblp>
