'net.sf.docbook:docbook-xml:5.1b4-all'
<dependency>
<groupId>net.sf.docbook</groupId>
<artifactId>docbook-xml</artifactId>
<version>5.1b4-all</version>
</dependency>
<dependency org="net.sf.docbook" name="docbook-xml" rev="5.1b4-all"/>
"net.sf.docbook", "docbook-xml", "5.1b4-all"