HINKKANEN, A.; ISHIZAKI, K.; LAINE, I.; LI, K. Y. Complex oscillation of solutions of a third order ODE. Annales Fennici Mathematici, [S. l.], v. 45, n. 1, p. 451–466, 2020. DOI: 10.5186/aasfm.2020.4527. Disponível em: https://afm.journal.fi/article/view/135864. Acesso em: 8 sep. 2024.