MERCIER, C. Editorial. Universum (Talca. En línea), [S. l.], v. 34, n. 2, p. 11–13, 2019. DOI: 10.4067/S0718-23762019000200011 . Disponível em: https://universum.utalca.cl/index.php/universum/article/view/11. Acesso em: 8 ago. 2022.