HEINS, Maurice. On a Theorem of Study Concerning Conformal Maps with Convex Images II. MATHEMATICA SCANDINAVICA, [S. l.], v. 32, p. 245–257, 1973. DOI: 10.7146/math.scand.a-11459. Disponível em: https://tidsskrift.dk/math/article/view/11459. Acesso em: 14 aug. 2026.