BINDU, P.; YELLA, Sarala; DASARI, Madhusudana Rao. T-SYSTEMS IN TERNARY SEMIGROUPS. Italian Journal of Pure and Applied Mathematics, [S. l.], v. 34, p. 221–224, 2015. Disponível em: https://journals.uniurb.it/index.php/ijpam/article/view/6354. Acesso em: 7 aug. 2026.