HÁJEK, P.; VÍT, O. Front Matter: Volume 2. Proceedings of CBU in Social Sciences, [S. l.], v. 2, p. i-ix, 2021. DOI: 10.12955/pss.v2.271. Disponível em: https://ojs.cbuic.cz/index.php/pss/article/view/271. Acesso em: 19 jan. 2022.