B. Dodge: WebQuests: A Strategy for Scaffolding Higher Level Learning. 1998. webquest.sdsu.edu (Memento vom 13. Februar 2010 im Internet Archive) (Stand: 24. Juni 2007)
wiley.com
acamh.onlinelibrary.wiley.com
Jerome Bruner, Gail Ross, David Wood: The Role of Tutoring in Problem Solving. In: The Journal of Child Psychology and Psychiatry. Band17, Nr.2, 1976, S.89–168 (wiley.com).