Rystedt, Elisabeth, Cecilia Kilhamn, and Ola Helenius. “What’s There in an N? Investigating Contextual Resources in Small Group Discussions Concerning an Algebraic Expression”. NOMAD Nordic Studies in Mathematics Education 21, no. 1 (March 19, 2016): 5–26. Accessed December 6, 2025. https://tidsskrift.dk/NOMAD/article/view/148715.