OSADA, A. Strongly annular functions with given singular values. MATHEMATICA SCANDINAVICA, [S. l.], v. 50, p. 73–78, 1982. DOI: 10.7146/math.scand.a-11945. Disponível em: https://www.mscand.dk/article/view/11945. Acesso em: 28 apr. 2024.