DAS, S. An Introduction to Multi Inner Product Space. Communications in Mathematics and Applications, [S. l.], v. 13, n. 1, p. 147–161, 2022. DOI: 10.26713/cma.v13i1.1700. Disponível em: http://rgnpublications.com/journals/index.php/cma/article/view/1700. Acesso em: 24 nov. 2024.