Hibernate EM reference - unclear reference to other docs

http://docs.jboss.org/hibernate/stable/entitymanager/reference/en/html/configuration.html#setup-configuration-packaging
There's a paragraph:

To ease the programmatic configuration, Hibernate Entity Manager provide a proprietary API. This API is very similar to the Configuration API and share the same concepts: Ejb3Configuration. *Refer to the JavaDoc and the Hibernate reference guide* for more detailed informations on how to use it.

What is "Hibernate reference guide"? Isn't it that document?
This seems it came from EAP 4.x days when the Hibernate doc was named so, see e.g.
http://docs.redhat.com/docs/en-US/JBoss_Enterprise_Application_Platform/4.2/html-single/Hibernate_Reference_Guide/index.html

Please try to find what should be there.