BORZOOEI, R.A.; VARASTEH, H.R.; BORNA, K. QUOTIENT HYPER HOOP-ALGEBRAS. Italian Journal of Pure and Applied Mathematics, [S. l.], v. 36, p. 87–100, 2016. Disponível em: https://journals.uniurb.it/index.php/ijpam/article/view/6651. Acesso em: 5 sep. 2026.