Shonia, O., T. Kaishauri, I. Kartvelishvili, L. Shonia, Z. Beridze, and I. Didmanidze. “Algorithm of Combined Method for Symbol Encoding In Virtual Private Networks (VPN)”. Journal of Technical Science and Technologies, vol. 1, no. 2, Feb. 2013, pp. 15-20, doi:10.31578/jtst.v1i2.39.