SÆTRE, Per Jarle. Ivar Refsdals skoleatlas: Atlasets innhold og betydning for samtiden. Nordidactica. Journal of Humanities and Social Science Education, [S. l.], v. 4, n. 2014:2, p. 24–50, 2014. Disponível em: https://journals.lub.lu.se/nordidactica/article/view/18977. Acesso em: 15 mar. 2025.