SHIMOMURA, S. On deficiencies of small functions for Painlevé transcendents of the fourth kind. Annales Fennici Mathematici, [S. l.], v. 27, n. 1, p. 109–120, 2002. Disponível em: https://afm.journal.fi/article/view/135029. Acesso em: 14 apr. 2025.