TÙNG, N. T. A metric on the set of partitions of a finite set. Journal of Computer Science and Cybernetics, [S. l.], v. 26, n. 1, p. 73–85, 2012. DOI: 10.15625/1813-9663/26/1/479. Disponível em: https://vjs.ac.vn/index.php/jcc/article/view/479. Acesso em: 3 may. 2024.