STRAHL, A.; MÜLLER, R.; HAGENDORF, S.; GROBE, J. Just How Deterring Are Formulas?. Scientia in educatione, [S. l.], v. 8, 2017. DOI: 10.14712/18047106.750. Disponível em: https://ojs.cuni.cz/scied/article/view/750. Acesso em: 9 bře. 2021.