Emanuelsson , Göran, Bengt Johansson, Barbara J. Reys, and Robert E. Reys. “Using a Journal to Engage Teachers in Developmental Work”. NOMAD Nordic Studies in Mathematics Education 4, no. 4 (December 1, 1996): 61–74. Accessed December 10, 2025. https://tidsskrift.dk/NOMAD/article/view/146446.