POPOVYCH, I.; KOKORINA, Y. .; PYSLAR, A. .; PALCHYNSKA, M. .; PAVLIUK, M. .; Raіevska Y. .; TOROP, K. . Research of the Mental States of Anxiety of Fourth-Graders in Secondary Schools during the Progression of the COVID-19 Pandemic. Revista Romaneasca pentru Educatie Multidimensionala, [S. l.], v. 14, n. 1, p. 32-51, 2022. DOI: 10.18662/rrem/14.1/506. Disponível em: https://www.lumenpublishing.com/journals/index.php/rrem/article/view/3880. Acesso em: 9 nov. 2026.