LICENSE.OPL

Open Publication License
v1.0, 8 June 1999


I. REQUIREMENTS ON BOTH UNMODIFIED AND MODIFIED VERSIONS

The Open Publication works may be reproduced and distributed in whole or in
part, in any medium physical or electronic, provided that the terms of this
license are adhered to, and that this license or an incorporation of it by
reference (with any options elected by the author(s) and/or publisher) is
displayed in the reproduction.

Proper form for an incorporation by reference is as follows:

    Copyright (c) <year> by <author's name or designee>. This material
    may be distributed only subject to the terms and conditions set
    forth in the Open Publication License, vX.Y or later (the latest
    version is presently available at http://www.opencontent.org/openpub/).

The reference must be immediately followed with any options elected by the
author(s) and/or publisher of the document (see section VI).

Commercial redistribution of Open Publication-licensed material is permitted.

Any publication in standard (paper) book form shall require the citation of
the original publisher and author. The publisher and author's names shall
appear on all outer surfaces of the book. On all outer surfaces of the book
the original publisher's name shall be as large as the title of the work
and cited as possessive with respect to the title.


II. COPYRIGHT

The copyright to each Open Publication is owned by its author(s) or designee.


III. SCOPE OF LICENSE

The following license terms apply to all Open Publication works, unless
otherwise explicitly stated in the document.

Mere aggregation of Open Publication works or a portion of an Open Publication
work with other works or programs on the same media shall not cause this
license to apply to those other works. The aggregate work shall contain a
notice specifying the inclusion of the Open Publication material and
appropriate copyright notice.

SEVERABILITY. If any part of this license is found to be unenforceable in any
jurisdiction, the remaining portions of the license remain in force.

NO WARRANTY. Open Publication works are licensed and provided "as is" without
warranty of any kind, express or implied, including, but not limited to, the
implied warranties of merchantability and fitness for a particular purpose or
a warranty of non-infringement.


IV. REQUIREMENTS ON MODIFIED WORKS

All modified versions of documents covered by this license, including
translations, anthologies, compilations and partial documents, must meet
the following requirements:

    1. The modified version must be labeled as such.

    2. The person making the modifications must be identified and the
       modifications dated.

    3. Acknowledgement of the original author and publisher if applicable
       must be retained according to normal academic citation practices.

    4. The location of the original unmodified document must be identified.

    5. The original author's (or authors') name(s) may not be used to assert
       or imply endorsement of the resulting document without the original
       author's (or authors') permission.


V. GOOD-PRACTICE RECOMMENDATIONS

In addition to the requirements of this license, it is requested from and
strongly recommended of redistributors that:

    1. If you are distributing Open Publication works on hardcopy or CD-ROM,
       you provide email notification to the authors of your intent to
       redistribute at least thirty days before your manuscript or media freeze,
       to give the authors time to provide updated documents. This notification
       should describe modifications, if any, made to the document.

    2. All substantive modifications (including deletions) be either clearly
       marked up in the document or else described in an attachment to the
       document.

    3. Finally, while it is not mandatory under this license, it is considered
       good form to offer a free copy of any hardcopy and CD-ROM expression of
       an Open Publication-licensed work to its author(s).


VI. LICENSE OPTIONS

The author(s) and/or publisher of an Open Publication-licensed document may
elect certain options by appending language to the reference to or copy of the
license. These options are considered part of the license instance and must be
included with the license (or its incorporation by reference) in derived works.

A. To prohibit distribution of substantively modified versions without the
explicit permission of the author(s). "Substantive modification" is defined
as a change to the semantic content of the document, and excludes mere changes
in format or typographical corrections.

To accomplish this, add the phrase `Distribution of substantively modified
versions of this document is prohibited without the explicit permission of
the copyright holder.' to the license reference or copy.

B. To prohibit any publication of this work or derivative works in whole or
in part in standard (paper) book form for commercial purposes is prohibited
unless prior permission is obtained from the copyright holder.

To accomplish this, add the phrase 'Distribution of the work or derivative of
the work in any standard (paper) book form is prohibited unless prior
permission is obtained from the copyright holder.' to the license reference
or copy.


OPEN PUBLICATION POLICY APPENDIX:

(This is not considered part of the license.)

Open Publication works are available in source format via the Open Publication
home page at http://works.opencontent.org/.

Open Publication authors who want to include their own license on Open
Publication works may do so, as long as their terms are not more restrictive
than the Open Publication license.

If you have questions about the Open Publication License, please contact
David Wiley, and/or the Open Publication Authors' List at opal@opencontent.org,
via email.