Godino JD, Wilhelmi MR, Blanco TF, Contreras Ángel, Giacomone B. Analysing mathematical activity through two theoretical tools: registers of semiotic representation and onto-semiotic configuration. AIEM [Internet]. 2016 Nov. 5 [cited 2026 Jul. 21];(10):91-110. Available from: https://aiem.es/aiem/article/view/3953