Levykin, Viktor, Maksym Ievlanov, Olga Neumyvakina, and Рetrychenko Oleksandr. 2021. “Development of Model of a Web-Based Information System Control Problem”. Technology Audit and Production Reserves 1 (2(57):25-31. https://doi.org/10.15587/2706-5448.2021.225067.