GJONE, G. Review – Theory of Didactical Situations in Mathematics. Didactique des Mathematiques, 1970-1990. NOMAD Nordic Studies in Mathematics Education, [S. l.], v. 7, n. 1, p. 47–52, 1999. DOI: 10.7146/nomad.v7i1.146659. Disponível em: https://tidsskrift.dk/NOMAD/article/view/146659. Acesso em: 9 jan. 2025.