1. Shakhovska, N., Vovk, O., Hasko, R., Kryvenchuk, Y.: The method of big data processing for distance educational system. In: Conference on Computer Science and Information Technologies, pp. 461–473. Springer, Cham, September 2017
2. Rashkevych, Y.M.: The Bologna Process and the New Paradigm of Higher Education. Vydavnytstvo Lvivska Politechnika, Lviv (2014). (in Ukr.)
3. System administrator leveling matrix.
https://docs.google.com/spreadsheets/d/1FBr20VIOePQH2aAH2a_6irvdB1NOTHZaD8U5e2MOMiw/pub?output=html
4. Table of levels for the system administrator.
http://habrahabr.ru/post/145148/
5. Matrix of programmer’s competence.
http://habrahabr.ru/post/37707/