MKHITARYAN, A. E. Info-Communication Systems Based on E-mail and SMS Technologies. Mathematical Problems of Computer Science, [S. l.], v. 49, p. 92–96, 2021. DOI: 10.51408/1963-0011. Disponível em: http://mpcs.sci.am/index.php/mpcs/article/view/90. Acesso em: 7 may. 2024.