4Leslie Herrenkohl, Heather Zimmerman, Kirsten Ellenbogen, Collaborative Research: Building Capacity and Collaboration at the Intersection of the Learning Sciences and Informal Science Education[EB/OL]. (2009 - 11-02) [2009 - 12 - 04], http://www. informalscience. org/project/show/1746.
5Philip Bell, Bruce Lewenstein, Andrew W. Shout, and Michael A. Feder, Editors. Committee on Learning Science in Informal Environments, National Research Council, Learning Science in Informal Environments: People, Places, and Pursuits, National Academies Press[M], 2009.
