PONPETCH, K. Characterizing Hyperbolic Functions over a Hyperplane. Walailak Journal of Science and Technology (WJST), [S. l.], v. 16, n. 9, p. 611–614, 2019. DOI: 10.48048/wjst.2019.6955. Disponível em: https://wjst.wu.ac.th/index.php/wjst/article/view/6955. Acesso em: 27 apr. 2024.