Disciples, Colleagues, Friends,. “Yurii Grygorovych Ptushynskyi (to the 90-Th Anniversary of His Birthday)”. Ukrainian Journal of Physics 62, no. 10 (December 12, 2018): 922. Accessed April 26, 2024. https://ujp.bitp.kiev.ua/index.php/ujp/article/view/2018627.