Steinthorsdottir, Olof B., and Bharath Sriraman. “Gender and Strategy Use in Proportional Situations: An Icelandic Study”. NOMAD Nordic Studies in Mathematics Education 12, no. 3 (September 20, 2007): 25–55. Accessed February 10, 2026. https://tidsskrift.dk/NOMAD/article/view/148036.