Computer Sciences and Communications Vol. 6, № 1 (2017). COMPUTER SCIENCES AND COMMUNICATIONS, [S. l.], v. 6, n. 1, 2018. DOI: 10.6666/кнк.v6i1.22. Disponível em: https://csc.bfu.bg/index.php/CSC/article/view/22. Acesso em: 12 oct. 2026.