What version of EJB do you use? EJB2.x or EJB3.x?
If you use EJB2 have a look into JBOSS_HOME/docs/dtd/jboss_?_?.dtd it might help.
Also the JBoss part of the Xdoclet documentation (http://xdoclet.sourceforge.net/xdoclet/tags/jboss-tags.html) might help