<?xml version="1.0"?>
<dblp>
<inproceedings key="conf/lics/Grohe98" mdate="2002-01-03">
<author>Martin Grohe</author>
<title>Fixed-Point Logics on Planar Graphs.</title>
<pages>6-15</pages>
<year>1998</year>
<booktitle>LICS</booktitle>
<url>db/conf/lics/lics98.html#Grohe98</url>
</inproceedings>
</dblp>
