BERGSTEN, Christer. Constructing geometric knowledge: A narrative on circle tangencies in a generalised arbelos. LUMAT: International Journal on Math, Science and Technology Education, [S. l.], v. 14, n. 2, p. 14, 2026. DOI: 10.31129/LUMAT.14.2.3139. Disponível em: https://journals.helsinki.fi/lumat/article/view/3139. Acesso em: 25 sep. 2026.