LUKAREVSKI, M. .; MARINESCU, D. S. Triangle inequalities in inner-product spaces. Innovative Journal of Mathematics (IJM), [S. l.], v. 1, n. 2, p. 14–17, 2022. DOI: 10.55059/ijm.2022.1.2/29. Disponível em: https://www.sigmawings.com/journals/index.php/IJM/article/view/29. Acesso em: 28 mar. 2024.