On visual representations of Lie algebras: the type Al between the old and the new. São Paulo Journal of Mathematical Sciences, [S. l.], v. 6, n. 1, p. 41–70, 2012. DOI: 10.11606/issn.2316-9028.v6i1p41-70. Disponível em: https://www.revistas.usp.br/spjournal/article/view/74399.. Acesso em: 7 maio. 2024.