HUY, Phan Trung; KHANG, Nguyễn Quý. Regular omega-languages and finite monoids having infinite products. <b>Journal of Computer Science and Cybernetics</b>, <i>[S. l.]</i>, v. 19, n. 2, p. 180–186, 2012. DOI: 10.15625/1813-9663/19/2/1512. Disponível em: https://jcc.vast.vn/jcc/article/view/1512. Acesso em: 4 nov. 2025.