SUNDARESAN, K. Orthogonality in Normed Linear Spaces. The Journal of the Indian Mathematical Society, [S. l.], v. 22, n. 3, p. 99–107, 1958. DOI: 10.18311/jims/1958/16948. Disponível em: http://informaticsjournals.com/index.php/jims/article/view/16948. Acesso em: 2 may. 2024.