NISS, Mogens. Challenges to the preparation of teachers of mathematics. NOMAD Nordic Studies in Mathematics Education, [S. l.], v. 2, n. 3-4, p. 31–46, 1994. DOI: 10.7146/nomad.v2i3-4.146132. Disponível em: https://tidsskrift.dk/NOMAD/article/view/146132. Acesso em: 6 dec. 2025.