Boichuk О. A. and Pokutnyi О. О., “Bounded solutions of the nonlinear Lyapunov equation and homoclinic chaos”, Ukr. Mat. Zhurn., vol. 71, no. 6, pp. 761–773, Jun. 2019, Accessed: Dec. 05, 2025. [Online]. Available: https://umj.imath.kiev.ua/index.php/umj/article/view/1474