RASTALL, P. Small model languages as tools for reflection. Language Under Discussion, [S. l.], v. 1, n. 1, p. 1–23, 2013. DOI: 10.31885/lud.1.1.248. Disponível em: https://journals.helsinki.fi/lud/article/view/248. Acesso em: 25 oct. 2021.