ЛУЖЕЦЬКИЙ, В. А.; ГОРБЕНКО, І. С. The method of permutations generating for an arbitrary quantity of elements. Ukrainian Information Security Research Journal, [S. l.], v. 15, n. 3, p. 262–267, 2013. DOI: 10.18372/2410-7840.15.4864. Disponível em: http://jrnl.kai.edu.ua/index.php/ZI/article/view/4864. Acesso em: 14 jun. 2026.