ERIKSSON, H. Algebraic thinking and level of generalisation: students’ experiencing of comparisons of quantities. NOMAD Nordic Studies in Mathematics Education, [S. l.], v. 24, n. 3-4, p. 131–151, 2019. DOI: 10.7146/nomad.v24i3-4.149039. Disponível em: https://tidsskrift.dk/NOMAD/article/view/149039. Acesso em: 7 jan. 2025.