On the Characterizations of Approach Groups.
European Journal of Pure and Applied Mathematics, Maryland, USA, v. 17, n. 3, p. 1762–1778, 2024. DOI:
10.29020/nybg.ejpam.v17i3.5279. Disponível em:
https://www.ejpam.com/index.php/ejpam/article/view/5279. Acesso em: 2 dec. 2024.