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."