GRÖHN, J. Slowly growing solutions of ODEs revisited. Annales Fennici Mathematici, [S. l.], v. 43, n. 2, p. 617–629, 2018. DOI: 10.5186/aasfm.2018.4339. Disponível em: https://afm.journal.fi/article/view/135748. Acesso em: 14 apr. 2025.