Opanasenko, Yaroslav, and Viktoriia Novikova. “Distance Learning in Higher Education: The Experience of the Covid-19 Pandemic and War in Ukraine”. Educational Challenges 27, no. 2 (October 23, 2022): 151–168. Accessed August 4, 2026. https://educationalchallenges.org.ua/index.php/education_challenges/article/view/103.