The author has agreed that we can also put his guide on the
LibreOffice wiki. I asked him to clarify the CC license, and he said
CC-BY-SA. I've looked at it and think it will be an excellent addition
to our collection.
He also said we could rebrand it as long as the name of the original
author remains, along with the link to the website of his university
http://www.fb4.fh-frankfurt.de/tips/openoffice/dokumentation/ooo_for_students.pdf
and his email address (paenson@fb4.fh-frankfurt.de).
--Jean