LANGLEY, J. K. Complex flows, escape to infinity and a question of Rubel. Annales Fennici Mathematici, [S. l.], v. 47, n. 2, p. 885–894, 2022. DOI: 10.54330/afm.120214. Disponível em: https://afm.journal.fi/article/view/120214. Acesso em: 17 aug. 2022.