Blame Manuals/Docbook/Entities/Licenses/Gfdl/modifications.docbook

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<sect1 id="licenses-gfdl-section-5" xreflabel="Modification">
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    <title>Modifications</title>
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    <para>You may copy and distribute a Modified Version of the
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    Document under the conditions of sections 
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    linkend="licenses-gfdl-section-3" /> and 
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    linkend="licenses-gfdl-section-4" /> above, provided that you
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    release the Modified Version under precisely this License, with
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    the Modified Version filling the role of the Document, thus
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    licensing distribution and modification of the Modified Version to
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    whoever possesses a copy of it.  In addition, you must do these
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    things in the Modified Version:
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    <orderedlist numeration="upperalpha">
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        <listitem>
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            <para> Use in the Title Page (and on the covers, if any) a
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            title distinct from that of the Document, and from those
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            of previous versions (which should, if there were any, be
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            listed in the History section of the Document).  You may
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            use the same title as a previous version if the original
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            publisher of that version gives permission.</para>
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        </listitem>
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        <listitem>
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            <para>List on the Title Page, as authors, one or more
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            persons or entities responsible for authorship of the
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            modifications in the Modified Version, together with at
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            least five of the principal authors of the Document (all
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            of its principal authors, if it has fewer than five),
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            unless they release you from this requirement.</para>
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        </listitem>
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        <listitem>
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            <para>State on the Title page the name of the publisher of
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            the Modified Version, as the publisher.</para>
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        </listitem>
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        <listitem>
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            <para>Preserve all the copyright notices of the
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            Document.</para>
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        </listitem>
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        <listitem>
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            <para>Add an appropriate copyright notice for your
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            modifications adjacent to the other copyright
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            notices.</para>
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        </listitem>
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        <listitem>
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            <para>Include, immediately after the copyright notices, a
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            license notice giving the public permission to use the
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            Modified Version under the terms of this License, in the
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            form shown in the Addendum below.</para>
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        </listitem>
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        <listitem>
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            <para>Preserve in that license notice the full lists of
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            Invariant Sections and required Cover Texts given in the
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            Document's license notice.</para>
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        </listitem>
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        <listitem>
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            <para>Include an unaltered copy of this License.</para>
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        </listitem>
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        <listitem>
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            <para>Preserve the section Entitled
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            <quote>History</quote>, Preserve its Title, and add to it
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            an item stating at least the title, year, new authors, and
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            publisher of the Modified Version as given on the Title
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            Page.  If there is no section Entitled
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            <quote>History</quote> in the Document, create one stating
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            the title, year, authors, and publisher of the Document as
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            given on its Title Page, then add an item describing the
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            Modified Version as stated in the previous
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            sentence.</para>
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        </listitem>
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        <listitem>
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            <para>Preserve the network location, if any, given in the
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            Document for public access to a Transparent copy of the
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            Document, and likewise the network locations given in the
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            Document for previous versions it was based on.  These may
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            be placed in the <quote>History</quote> section.  You may
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            omit a network location for a work that was published at
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            least four years before the Document itself, or if the
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            original publisher of the version it refers to gives
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            permission.</para>
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        </listitem>
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        <listitem>
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            <para>For any section Entitled
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            <quote>Acknowledgements</quote> or
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            <quote>Dedications</quote>, Preserve the Title of the
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            section, and preserve in the section all the substance and
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            tone of each of the contributor acknowledgements and/or
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            dedications given therein.</para>
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        </listitem>
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        <listitem>
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            <para>Preserve all the Invariant Sections of the Document,
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            unaltered in their text and in their titles.  Section
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            numbers or the equivalent are not considered part of the
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            section titles.</para>
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        </listitem>
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        <listitem>
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            <para>Delete any section Entitled <quote>Endorsements</quote>.  Such
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            a section may not be included in the Modified
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            Version.</para>
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        </listitem>
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        <listitem>
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            <para>Do not retitle any existing section to be Entitled
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            <quote>Endorsements</quote> or to conflict in title with
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            any Invariant Section.</para>
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        </listitem>
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        <listitem>
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            <para>Preserve any Warranty Disclaimers.</para>
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        </listitem>
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    </orderedlist>
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    </para>
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    <para>If the Modified Version includes new front-matter sections
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    or appendices that qualify as Secondary Sections and contain no
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    material copied from the Document, you may at your option
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    designate some or all of these sections as invariant.  To do this,
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    add their titles to the list of Invariant Sections in the Modified
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    Version's license notice.  These titles must be distinct from any
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    other section titles.</para>
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    <para>You may add a section Entitled <quote>Endorsements</quote>,
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    provided it contains nothing but endorsements of your Modified
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    Version by various parties–for example, statements of peer
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    review or that the text has been approved by an organization as
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    the authoritative definition of a standard.</para>
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    <para>You may add a passage of up to five words as a Front-Cover
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    Text, and a passage of up to 25 words as a Back-Cover Text, to the
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    end of the list of Cover Texts in the Modified Version.  Only one
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    passage of Front-Cover Text and one of Back-Cover Text may be
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    added by (or through arrangements made by) any one entity.  If the
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    Document already includes a cover text for the same cover,
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    previously added by you or by arrangement made by the same entity
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    you are acting on behalf of, you may not add another; but you may
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    replace the old one, on explicit permission from the previous
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    publisher that added the old one.</para>
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    <para>The author(s) and publisher(s) of the Document do not by
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    this License give permission to use their names for publicity for
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    or to assert or imply endorsement of any Modified Version.</para>
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</sect1>