PETIŠKA, E. Rather Wikipedia than textbooks: Patterns of usage of Open Educational Resources (OER) by Students of Environmental Fields. Envigogika, Praha, Czech Republic, v. 13, n. 2, 2018. DOI: 10.14712/18023061.569. Disponível em: https://www.envigogika.cuni.cz/index.php/Envigogika/article/view/569. Acesso em: 23 apr. 2021.