JANČIĆ RAŠOVIĆ, Sanja. ON HYPERRINGS ASSOCIATED WITH BINARY RELATIONS ON SEMIHYPERGROUP. Italian Journal of Pure and Applied Mathematics, [S. l.], v. 30, p. 279–288, 2013. Disponível em: https://journals.uniurb.it/index.php/ijpam/article/view/6079. Acesso em: 18 jul. 2026.