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You can contribute only Open Educational Resources
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-  You can upload files of any format

-  All files get uploaded under the CC-BY-SA licence (This license lets others remix, tweak, and build upon your work even for commercial purposes, as long as they credit you and license their new creations under the identical terms) unless you chose a different licence

- Please visit https://creativecommons.org/licenses/ and http://www.gnu.org/licenses/fdl-1.3.en.html to learn more about licenses
[Contributed by Keerthi on 20. Januar 2017 15:17:28]

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