Nielsen, J., Yssing, C.
& Levinsen, K. (2007).
Embedding complementarity in HCI methods. I P. Yammiyavar & T. Clemmensen (red.),
Proceedings of Indo-Danish, Human-Computer Interaction (HCI) Research Symposium: cross cultural issues in HCI. (s. 1-10). Indian Institute of Technology Guwahati.