Tolstoluzka, Olena G., and Krystyna O. Afanasieva. 2020. “Model for Taking into Account the Research Activity of Education System Employees Based on the IOS Operating System”. Bulletin of V.N. Karazin Kharkiv National University, Series «Mathematical Modeling. Information Technology. Automated Control Systems» 47 (September), 80-85. https://doi.org/10.26565/2304-6201-2020-47-07.