[1]
V. Y. Slyusarchuk, “Generalization of the Kneser theorem on zeros of solutions of the equation $y" + p (t) y = 0$”, Ukr. Mat. Zhurn., vol. 59, no. 4, pp. 571–576, Apr. 2007, Accessed: Dec. 05, 2025. [Online]. Available: https://umj.imath.kiev.ua/index.php/umj/article/view/3332