1. Akhmetov, B.A., Korchenko, A.G., Sidenko, V.P., Dreys, Y.A., Seylova, N.A.: Applied Cryptology: Encryption Methods. K.I. Satpayev, Almaty (2015)
2. Basalova, G.V.: Basic Cryptography. National Open University “INTUIT”, Moscow (2016)
3. Lecture Notes in Networks and Systems;OA Bulavko,2020
4. Feldvari, K., Varga, M.: Young people as human capital—what type of information literacy education is required? In: Tonkovic, A.M. (ed.) Proceedings of the 6th International Scientific Symposium on Economy of Eastern Croatia—Vision and Growth, pp. 318–326. Springer, Cham (2017)
5. Haltiwanger, J., Jarmin, R.S.: Measuring the digital economy. Underst. Digital Econ. 2(13–33), 143–172 (2000)