You may copy and distribute a Modified Version of the
Document under the conditions of sections 2 and 3 above,
provided that you release the Modified Version under precisely
this License, with the Modified Version filling the role of
the Document, thus licensing distribution and modification of
the Modified Version to whoever possesses a copy of it. In
addition, you must do these things in the Modified
Version:
Use in the Title Page (and on the covers,
if any) a title distinct from that of the Document, and
from those of previous versions (which should, if there
were any, be listed in the History section of the
Document). You may use the same title as a previous
version if the original publisher of that version gives
permission.
List on the Title Page, as authors, one or
more persons or entities responsible for authorship of the
modifications in the Modified Version, together with at
least five of the principal authors of the Document (all
of its principal authors, if it has fewer than five),
unless they release you from this requirement.
State on the Title page the name of the
publisher of the Modified Version, as the
publisher.
Preserve all the copyright notices of the
Document.
Add an appropriate copyright notice for
your modifications adjacent to the other copyright
notices.
Include, immediately after the copyright notices, a
license notice giving the public permission to use the Modified
Version under the terms of this License, in the form shown in the
Addendum below.
Preserve in that license notice the full lists of
Invariant Sections and required Cover Texts given in the Document's
license notice.
Include an unaltered copy of this License.
Preserve the section Entitled "History",
Preserve its Title, and add to it an item stating at least
the title, year, new authors, and publisher of the
Modified Version as given on the Title Page. If there is
no section Entitled "History" in the Document, create one
stating the title, year, authors, and publisher of the
Document as given on its Title Page, then add an item
describing the Modified Version as stated in the previous
sentence.
Preserve the network location, if any,
given in the Document for public access to a Transparent
copy of the Document, and likewise the network locations
given in the Document for previous versions it was based
on. These may be placed in the "History" section. You
may omit a network location for a work that was published
at least four years before the Document itself, or if the
original publisher of the version it refers to gives
permission.
For any section Entitled "Acknowledgements"
or "Dedications", Preserve the Title of the section, and
preserve in the section all the substance and tone of each
of the contributor acknowledgements and/or dedications
given therein.
Preserve all the Invariant Sections of the
Document, unaltered in their text and in their titles.
Section numbers or the equivalent are not considered part
of the section titles.
Delete any section Entitled "Endorsements".
Such a section may not be included in the Modified
Version.
Do not retitle any existing section to be
Entitled "Endorsements" or to conflict in title with any
Invariant Section.
Preserve any Warranty Disclaimers.
If the Modified Version includes new front-matter sections
or appendices that qualify as Secondary Sections and contain
no material copied from the Document, you may at your option
designate some or all of these sections as invariant. To do
this, add their titles to the list of Invariant Sections in
the Modified Version's license notice. These titles must be
distinct from any other section titles.
You may add a section Entitled "Endorsements", provided it
contains nothing but endorsements of your Modified Version by
various parties--for example, statements of peer review or
that the text has been approved by an organization as the
authoritative definition of a standard.
You may add a passage of up to five words as a Front-Cover
Text, and a passage of up to 25 words as a Back-Cover Text, to
the end of the list of Cover Texts in the Modified Version.
Only one passage of Front-Cover Text and one of Back-Cover
Text may be added by (or through arrangements made by) any one
entity. If the Document already includes a cover text for the
same cover, previously added by you or by arrangement made by
the same entity you are acting on behalf of, you may not add
another; but you may replace the old one, on explicit
permission from the previous publisher that added the old
one.
The author(s) and publisher(s) of the Document do not by
this License give permission to use their names for publicity
for or to assert or imply endorsement of any Modified
Version.
