SCHMIDT, A. L. Farey Triangles and Farey Quadrangels in the Complex Plane. MATHEMATICA SCANDINAVICA, [S. l.], v. 21, p. 241–295, 1967. DOI: 10.7146/math.scand.a-10863. Disponível em: https://www.mscand.dk/article/view/10863. Acesso em: 29 apr. 2024.