Artiuh, A., Maksimenko, V. and Tolstoluzskaya, E. (2021) “Research of the computer model of the web service for testing knowledge”, Bulletin of V.N. Karazin Kharkiv National University, series «Mathematical modeling. Information technology. Automated control systems», 52, pp. 12-18. doi: 10.26565/2304-6201-2021-52-02.