Hinkkanen, Aimo, Katsuya Ishizaki, Ilpo Laine, and Kin Y. Li. “Complex Oscillation of Solutions of a Third Order ODE”. Annales Fennici Mathematici 45, no. 1 (February 1, 2020): 451–466. Accessed November 22, 2024. https://afm.journal.fi/article/view/135864.