References
Paul A. Kirschner
What we know about CSCL: and implementing IT in higher education2004
with Strijbos Jan Willem, Martens Rob L (ed)
Dordrecht, Springer
Learning ability development in flexible learning environments
2014
with Brand-Gruwel Saskia, Kester Liesbeth, Kicken Wendy
in: Handbook of research on educational communications and technology, Dordrecht : Springer