Ejersbo, L. R. & Leron, U. (2012).
Reconciling intuitive and analytical thinking: a design perspective. I G. H. Gunnarsdóttir, F. Hreinsdóttir, G. Pálsdóttir, M. Hannula, M. Hannula-Sormunen, E. Jablonka, U. T. Jankvist, A. Ryve, P. Valero & K. Wæge (red.),
Proceedings of Norma 11: The Sixth Nordic Conference on Mathematics Education (s. 227-236). University of Iceland Press.