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'''Important note:''' ''The MTGS Wiki, nor MTGS, does not own copyright on MTGS Wiki article texts and illustrations. It is therefore useless to email our contact addresses asking for permission to reproduce content. It is possible to reproduce content under the license and technical conditions applicable to MTGS Wiki (see below and [
http: //en.wikipedia.org/wiki/Wikipedia:Mirrors_and_forks Wikipedia:Mirrors and forks]). The permissions to reproduce MTGS Wiki's content in accordance with these conditions are granted without request.''
The license MTGS Wiki uses grants free access to our content in the same sense as [
http: //en.wikipedia.org/wiki/Free_software free software] is licensed freely. This principle is known as '''[ http: //en.wikipedia.org/wiki/Copyleft copyleft]'''. That is to say, MTGS Wiki content can be copied, modified, and redistributed ''so long as'' the new version grants the same freedoms to others and acknowledges the authors of the MTGS Wiki article used (a direct link back to the article satisfies our author credit requirement). MTGS Wiki articles therefore will remain free forever and can be used by anybody subject to certain restrictions, most of which serve to ensure that freedom.
To fulfill the above goals, the text contained in MTGS Wiki is copyrighted (automatically under the [
http: //en.wikipedia.org/wiki/Berne_Convention_for_the_Protection_of_Literary_and_Artistic_Works Berne Convention]) by MTGS Wiki contributors and licensed to the public under the '''[ http: //en.wikipedia.org/wiki/GNU_Free_Documentation_License GNU Free Documentation License]''' (GFDL). The full text of this license is at [ http: //en.wikipedia.org/wiki/Wikipedia:Text_of_the_GNU_Free_Documentation_License Wikipedia:Text of the GNU Free Documentation License]. This text should not be changed for legal reasons.
:'''Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the [
http: //en.wikipedia.org/wiki/Free_Software_Foundation Free Software Foundation]; with no Invariant Sections, with no Front-Cover Texts, and with no Back-Cover Texts.'''
:'''A copy of the license is included in the section entitled "[
http: //en.wikipedia.org/wiki/Wikipedia:Text_of_the_GNU_Free_Documentation_License GNU Free Documentation License]".'''
:'''Content on MTGS Wiki is covered by [
http: //en.wikipedia.org/wiki/Wikipedia:General_disclaimer disclaimers].'''
<!--- see Text of the GFDL, "How to use this license" for why we use this specific form of words (+discussion in Talk) --->
The English text of the GFDL is the only legally binding document; what follows is our interpretation of the GFDL: the rights and obligations of users and contributors.
<font size="+1">IMPORTANT: If you want to reuse content from MTGS Wiki, first read the [
http: //en.wikipedia.org/wiki/Wikipedia:Copyrights#Reusers.27_rights_and_obligations Reusers' rights and obligations] section. You should then read the [ http: //en.wikipedia.org/wiki/Wikipedia:Text_of_the_GNU_Free_Documentation_License GNU Free Documentation License].</font>
== Contributors' rights and obligations ==
license, which means that either
* you hold the copyright to the material, for instance because you produced it yourself, or
* you acquired the material from a source that allows the licensing under GFDL, for instance because the material is in the [
http: //en.wikipedia.org/wiki/Public_domain public domain] or is itself published under GFDL.
In the first case, you retain copyright to your materials. You can later republish and relicense them in any way you like. However, you can never retract the GFDL license for the versions you placed here: that material will remain under GFDL forever.
=== Using copyrighted work from others ===
All works are copyrighted unless they either fall into the [
http: //en.wikipedia.org/wiki/Wikipedia:Public_domain public domain] or their copyright is explicitly disclaimed. If you use part of a copyrighted work under "[ http: //en.wikipedia.org/wiki/Wikipedia:Fair_use fair use]", or if you obtain special permission to use a copyrighted work from the copyright holder under the terms of our license, you must make a note of that fact (along with names and dates). It is our goal to be able to freely redistribute as much of MTGS Wiki's material as possible, so original images and sound files licensed under the GFDL or in the [ http: //en.wikipedia.org/wiki/Public_domain public domain] are greatly preferred to copyrighted media files used under fair use.
Never use materials that infringe the copyrights of others. This could create legal liabilities and seriously hurt the project. If in doubt, write it yourself.
Note that copyright law governs the ''creative expression'' of ideas, not the ideas or information themselves. Therefore, it is legal to read an encyclopedia article or other work, reformulate the concepts in your own words, and submit it to MTGS Wiki. However, it would still be unethical (but not illegal) to do so without citing the original as a reference. See [
http: //en.wikipedia.org/wiki/Plagiarism plagiarism] and [ http: //en.wikipedia.org/wiki/Fair_use fair use] for discussions of how much reformulation is necessary in a general context.
=== Linking to copyrighted works ===
Since most recently-created works are copyrighted, almost any MTGS Wiki article which [
http: //en.wikipedia.org/wiki/Wikipedia:Cite_sources cites its sources] will link to copyrighted material. It is not necessary to obtain the permission of a copyright holder before linking to copyrighted material — just as an author of a book does not need permission to cite someone else's work in their [ http: //en.wikipedia.org/wiki/Bibliography bibliography]. Likewise, MTGS Wiki is not restricted to linking only to GFDL-free or open-source content.
If you know that an external Web site is carrying a work in violation of the creator's copyright, do not link to that copy of the work. Knowingly and intentionally directing others to a site that violates copyright has been considered a form of [
http: //en.wikipedia.org/wiki/Contributory_infringement contributory infringement] in the United States ([http://www.law.uh.edu/faculty/cjoyce/copyright/release10/IntRes.html Intellectual Reserve v. Utah Lighthouse Ministry]). Linking to a page that illegally distributes someone else's work sheds a bad light on MTGS Wiki and its editors.
=== If you find a copyright infringement ===
If you suspect a copyright infringement, you should at the very least bring up the issue on that page's [
http: //en.wikipedia.org/wiki/Help:Talk_page talk page]. Others can then examine the situation and take action if needed. The most helpful piece of information you can provide is a [ http: //en.wikipedia.org/wiki/URL URL] or other reference to what you believe may be the source of the text.
Some cases will be false alarms. For example, if the contributor was in fact the author of the text that is published elsewhere under different terms, that does not affect their right to post it here under the GFDL. Also, sometimes you will find text elsewhere on the Web that was copied from MTGS Wiki. In both of these cases, it is a good idea to make a note in the talk page to discourage such false alarms in the future.
http: //en.wikipedia.org/wiki/Wikipedia:Copyrights Wikipedia:Copyrights]