You may combine the Document with other documents released under + this License, under the terms defined in section 4 above for modified + versions, provided that you include in the combination all of the + Invariant Sections of all of the original documents, unmodified, and list + them all as Invariant Sections of your combined work in its license + notice.
The combined work need only contain one copy of this License, and + multiple identical Invariant Sections may be replaced with a single copy. + If there are multiple Invariant Sections with the same name but different + contents, make the title of each such section unique by adding at the end + of it, in parentheses, the name of the original author or publisher of + that section if known, or else a unique number. Make the same adjustment + to the section titles in the list of Invariant Sections in the license + notice of the combined work.
In the combination, you must combine any sections entitled + "History" in the various original documents, forming one section entitled + "History"; likewise combine any sections entitled "Acknowledgements", and + any sections entitled "Dedications". You must delete all sections + entitled "Endorsements."