EBANKS, Bruce. A Levi–Civita equation on monoids, two ways. Annales Mathematicae Silesianae, [S. l.], v. 36, n. 2, p. 151–166, 2022. Disponível em: https://journals.us.edu.pl/index.php/AMSIL/article/view/13837. Acesso em: 18 apr. 2025.