HILLE, E. On some generalizations of the Malmquist theorem. MATHEMATICA SCANDINAVICA, [S. l.], v. 39, p. 59–79, 1976. DOI: 10.7146/math.scand.a-11644. Disponível em: https://www.mscand.dk/article/view/11644. Acesso em: 29 apr. 2024.