SUBBA RAO, M. V. On the Existence of a Norm Weaker than a Given Family of Norms on a Vector Space. The Journal of the Indian Mathematical Society, [S. l.], v. 22, n. 2, p. 53–58, 1958. DOI: 10.18311/jims/1958/16975. Disponível em: https://www.informaticsjournals.com/index.php/jims/article/view/16975. Acesso em: 28 apr. 2024.