OPL

     OPEN PUBLICATION LICENSE  Draft v0.4, 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 <URL:http:// TBD>).
     
     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.
     
     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 <URL:tbd>.
     
     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
     TBD, and/or the Open Publication Authors' List at <TBD>, via email.