BULKOVÁ, Z. .; GAŠPARÍK, J. .; DEDÍK, M. .; KAMPF, R. . Implementation of COVID-19 measures in railway operation in the Slovak Republic. Cognitive Sustainability, [S. l.], v. 1, n. 2, 2022. DOI: 10.55343/CogSust.18. Disponível em: https://ojs3.mtak.hu/index.php/CogSust/article/view/20399. Acesso em: 14 nov. 2026.