Ivan Oleksandrovych Lukovs’kyi (on his 80th birthday). Neliniini Kolyvannya, [S. l.], v. 18, n. 3, p. 291–294, 2015. Disponível em: https://nosc.imath.kiev.ua/index.php/nosc/article/view/787. Acesso em: 12 apr. 2026.