V. Y. Saprykina, S. I. Lashko, E. N. Klochko, E. A. Yarushkina, N. A. Chumakova, and V. E. Bugaenko, “Organizational-administrative Features of the Implementation of Educational Services in the Two-level System of Training of Highly Qualified Personnel”, IJEFI, vol. 6, no. 1S, pp. 120–125, May 2016.