Mkhitaryan, Andranik E., Aram S. Nanassian, and Eduard Z. Matveev. “Unimail Info-Communicational Software”. Mathematical Problems of Computer Science 49 (December 10, 2021): 74–78. Accessed May 1, 2025. http://www.mpcs.sci.am/index.php/mpcs/article/view/87.