THI, Vũ Đức. On the minimal family. <b>Journal of Computer Science and Cybernetics</b>, <i>[S. l.]</i>, v. 17, n. 3, p. 48–52, 2012. DOI: 10.15625/1813-9663/17/3/2625. Disponível em: https://vjes.vast.vn/jcc/article/view/2625. Acesso em: 12 jan. 2026.