1. Koohang, A., Riley, L., Smith, T., Schreurs, J.: E-learning and constructivism: from theory to ap-plication. Interdisciplinary Journal of E-Learning and Learning Objects 5, 91–109 (2009)
2. Ren, S., Sheng, X.: Learning Commons Building Collaborative and Interactive Learning Environments. Journal of Academic Libraries 26(4), 20–26 (2008)
3. Braaksma, B., et al.: Building a Virtual Learning Commons: What Do You Want to Do? In: The World Library and Information Congress: 73rd IFLA General Conference and Council, Durban, South Africa, August 19-23 (2007)
4. Session, D., Douglas, R.: Xavier University’s Web 2.0 Strategy: The Virtual Learning Commons, EDUCAUSE Annual Conferences,
http://connect.educause.edu/library/abstract/XavierUniversitysWeb/45371
5. Luo, X., Zhang, J., Liu, F., Du, Y., Yu, Z., Xu, W.: Merging Textual Knowledge Represented by Element Fuzzy Cognitive Maps. JSW 5(2), 225–234 (2010)