By Rusman Ellen   in Computer Supported Cooperative Work (CSCW)

ISSN:0925-9724|22|2-3|159-179

Springer Publishing Company ‎(2013)‎

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By Kalz Marco   van Bruggen Jan   Rusman Ellen   Giesbers Bas   Koper Rob   in Interactive Learning Environments

ISSN:1049-4820|15|2|191-200

Routledge Ltd‎(2007)‎

Access to resources Favorite 8.461005