heinz’s avatarheinz’s Twitter Archive—№ 10,338

  1. @jaegerWM I just added you to my branch about “OER und Content in Social Networks” branch.com/b/oer-und-content-in-social-networks?showsignin=true&inviter_image_url=https://si0.twimg.com/profile_images/1456441156/profile500_bigger.png&inviter=Heinz%20Wittenbrink
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