Berezansky YM, Gorbachuk VI, Gorbachuk ML, Korolyuk VS, Mitropolskiy YA, Samoilenko AM, Tarasov VG. On the 60th birthday of Leonid Pavlovich Nizhnik. Ukr. Mat. Zhurn. [Internet]. 1995Oct.25 [cited 2024Jul.27];47(10):1416–1417. Available from: https://umj.imath.kiev.ua/index.php/umj/article/view/5536