HOÀNG, Vũ Huy; CHUYẾT, Đặng Văn. Some properties of the set T(e), a special subset of Z. <b>Journal of Computer Science and Cybernetics</b>, <i>[S. l.]</i>, v. 25, n. 2, p. 159–165, 2012. DOI: 10.15625/1813-9663/25/2/573. Disponível em: https://jcc.vast.vn/jcc/article/view/573. Acesso em: 4 nov. 2025.