MALIARCHUK O, SABADUKHA V. YAROSLAV FEDORUK’S SCIENTIFIC AND ADMINISTRATIVE ACTIVITIES UNDER THE CONDITIONS OF THE CRISIS OF THE SOVIET SYSTEM (1960 – 1980s). EEHB [Internet]. 2023Dec.26 [cited 2024Jul.27];(29):163-72. Available from: http://eehb.dspu.edu.ua/article/view/292937