Tverdokhliebova, Natalia, and Yevtushenko Nataliіa. “Transforming the Cognitive Conditions of Online Learning in Higher Education”. Educational Challenges 31, no. 1 (April 15, 2026): 18–29. Accessed June 7, 2026. https://www.educationalchallenges.org.ua/index.php/education_challenges/article/view/536.