Safa'a AbuJarour, Henri Pirkkalainen, Jan M. Pawlowski, Markus Bick, Migle Bagucanskyte, Anna Frankenberg, Raimund Hudak, Constantinos Makropoulos, Dimitra Pappa, Vassilis Pitsilis, Anne-Christin Tannhauser, Elena Trepule, Aristedes Vidalis, Airina Volungeviciene. Design Principles for Collaboration Platforms for Open Education. In Markus Helfert, Maria Teresa Restivo, Susan Zvacek, James Onohuome Uhomoibhi, editors, CSEDU 2015 - Proceedings of the 7th International Conference on Computer Supported Education, Volume 1, Lisbon, Portugal, 23-25 May, 2015. pages 349-359, SciTePress, 2015. [doi]
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