1. Smith, T.: Asynchronous discussions: Importance, design, facilitation, and evaluation (2001),
http://www.ion.illinois.edu/pointers/2002_11/page1.html
2. Mason, R.: Guest editorial: blended learning. Education, Communication & Information 5(3), 217–220 (2005)
3. Stubbs, M., Martin, I., Endlar, L.: The structuration of blended learning: putting holistic design principles into practice. British Journal of Educational Technology 37(2), 163–175 (2006)
4. Ward, J., LaBranche, G.A.: Blended learning: The convergence of e-learning and meetings. Franchising World 35(4), 22 (2003)
5. Bersin & Associates. Blended Learning: What Works? E-LearningGuru (2003),
http://www.e-learningguru.com/wpapers/blended_bersin.doc