<?xml version="1.0"?>
<dblp>
<inproceedings key="conf/gis/EgenhoferA92" mdate="2009-10-09">
<author>Max J. Egenhofer</author>
<author>Khaled K. Al-Taha</author>
<title>Reasoning about Gradual Changes of Topological Relationships.</title>
<pages>196-219</pages>
<year>1992</year>
<crossref>conf/gis/1992</crossref>
<booktitle>Spatio-Temporal Reasoning</booktitle>
<url>db/conf/gis/gis92.html#EgenhoferA92</url>
<ee>http://dx.doi.org/10.1007/3-540-55966-3_12</ee>
</inproceedings>
</dblp>
