1) Chelak V.V., Development of templates for identification of the state of computer systems based on BDS testing / Semenov S.G., Gavrilenko S.Yu., Chelak V.V. // Bulletin of NTU “KPI”. Informatics and modeling. – Kharkov, 2016. – №21. – p.118-125.;

2) Chelak V.V., Developing parametric criterion for registering abnormal behavior in computer and telecommunication systems on the basis of economic test // G. Semenov, S. Gavrilenko, V. Chelak // Actual problems of economics. – Kiev, 2016, Vol 4 (178), pp. 451-459.;

3) Chelak V.V., Analysis of Changes in Fractal Characteristics of CPU and Network Card Boots Caused by Malware / S.Yu. Gavrilenko, V.V. Chelak, // STANDART Scientific and Technical Journal of UZSTANDART Agency. 4/2017. – Uzbekistan – 2017. – P. 14-17;

4) Chelak V.V., Development of a Heuristic Antivirus Scanner Based on File`s PE-Structure Analysis / S.Yu. Гавриленко, М.С. Melnyk, V.V. Chelak // International Science and Technology Journal, Information Technology and Computer Engineering. №3 (40) 2017. – Vinnytsia 2017 – P. 23-29;

5) Chelak V.V., Investigation of Intrusion in Computer Systems Based on the Hurst Exponent / S.Y. Гавриленко, В.В. Chelak, N. Bilogorskiy // Advanced Information Systems Vol.1, No.2,2017. – Kharkov 2017 – C. 58-61;

6) Chelak V.V., System of identification of malicious software on the basis of context-free grammars / S.Yu. Gavrilenko V.V. Chelak V.A. Vasilev // Advanced Information Systems Vol.2, No.2,2018. – Kharkov 2018 – C. 101-105;

7)Viktor Chelak Identification of the computer system state based on multidimensional discriminant analysis. / S. Gavrylenko, V. Chelak, O. Gornostal S. Gornostal // Proceedings of the 29th International Scientific Symposium Metrology and Metrology Assurance.–Sozopol, Bulgaria.–2019.;

8) Chelak V. V. Effectiveness Evaluation of Methods and Means of Information Security in Computer Systems and Networks / V.V.Chelak, E.V. Chelak, S.Yu. Gavrylenko// Proceedings of the 7th International Informatics, management and artificial intelligence.– – 2019.– С. 121.;

9) Сhelak V. Research of intelligent data analysis methods for identification of computer system state / S. Gavrylenko, V. Chelak, O. Hornostal //Proceedings of the 30th International Scientific Symposium Metrology and Metrology Assurance.– – Bulgaria.–2020.;

10) Chelak V. Development of a method for identification the state of a computer system using fuzzy cluster analysis / V. Chelak, S. Gavrylenko, O. Hornostal, V. Vassilev // Advanced Information Systems Vol.4,No.2.– Kharkov 2020 – C. 8-11;

11) Viktor Chelak Method of Identifying the State of Computer System under the Condition of Fuzzy Source Data / Viktor Chelak, Svitlana Gavrylenko and Michael Kazarinov // International Journal of Computer Science and Security (IJCSS).– Volume (14) : Issue (5).– 2020.– pp.174-186.