GREVHOLM, B. Network for research on mathematics textbooks in the Nordic countries. NOMAD Nordic Studies in Mathematics Education, [S. l.], v. 16, n. 4, p. 91–102, 2011. DOI: 10.7146/nomad.v16i4.148410. Disponível em: https://tidsskrift.dk/NOMAD/article/view/148410. Acesso em: 8 jan. 2025.