GREVHOLM, B. The Nordic Graduate School. NOMAD Nordic Studies in Mathematics Education, [S. l.], v. 12, n. 1, p. 73–75, 2007. DOI: 10.7146/nomad.v12i1.148023. Disponível em: https://tidsskrift.dk/NOMAD/article/view/148023. Acesso em: 9 jan. 2025.