BEKKEN, O. B. Algorismus i Hauksbók. NOMAD Nordic Studies in Mathematics Education, [S. l.], v. 3, n. 1, p. 7–25, 1995. DOI: 10.7146/nomad.v3i1.146152. Disponível em: https://tidsskrift.dk/NOMAD/article/view/146152. Acesso em: 9 jan. 2025.