GREVHOLM, Barbro. The Nordic graduate school in mathematics education. NOMAD Nordic Studies in Mathematics Education, [S. l.], v. 12, n. 2, p. 83–86, 2007. DOI: 10.7146/nomad.v12i2.148033. Disponível em: https://tidsskrift.dk/NOMAD/article/view/148033. Acesso em: 6 dec. 2025.