V. S. Korolyuk, “Volodymyr Leonidovych Makarov (on his 75th birthday)”, Ukr. Mat. Zhurn., vol. 68, no. 12, pp. 1715–1717, Dec. 2016, Accessed: Apr. 23, 2025. [Online]. Available: https://umj.imath.kiev.ua/index.php/umj/article/view/1956