T. A. Barannyk, A. F. Barannyk, and I. I. Yuryk, “Generalized separation of variables and exact solutions of nonlinear equations”, Ukr. Mat. Zhurn., vol. 62, no. 12, pp. 1598–1609, Dec. 2010, Accessed: Dec. 05, 2025. [Online]. Available: https://umj.imath.kiev.ua/index.php/umj/article/view/2985