BREKKE, G.; GJONE, G. NOMAD – A Nordic and an international journal. NOMAD Nordic Studies in Mathematics Education, [S. l.], v. 6, n. 1, p. 4–6, 1998. DOI: 10.7146/nomad.v6i1.146496. Disponível em: https://tidsskrift.dk/NOMAD/article/view/146496. Acesso em: 9 jan. 2025.