C. Gagnon, and V. Côté. Proceedings of DRS 2014: Design’s Big Debates. Design Research Society Biennial International Conference 16-19 June 2014, Umeå, Sweden, Umeå Institute of Design, Umeå University, Umeå, Sweden, (2014)
U. Pfeil, and P. Zaphiris. Computers in Human Behavior, 25 (5):
1139 - 1155(2009)Including the Special Issue: Design Patterns for Augmenting E-Learning Experiences.