PETIŠKA, E.; KORHOŇOVÁ, L. .; POSPÍŠILOVÁ, M.; DLOUHÝ, J. Use and evaluation of the quality of open educational resources in the context of universities: the situation at Charles University. Envigogika, Praha, Czech Republic, v. 15, n. 1, 2020. DOI: 10.14712/18023061.607. Disponível em: https://envigogika.czp.cuni.cz/index.php/Envigogika/article/view/607. Acesso em: 4 mar. 2021.