TY JOUR TI MODEL OF INDIVIDUALLY GROUP ASSIGNMENT OF ACCESS TO HIERARCHICALLY ORGANIZED OBJECTS OF CRITICAL INFORMATION SYSTEMS USING MOBILE TECHNOLOGIES KW mobile station KW hierarchical thematic classification KW security gateway KW mobile device manager KW medical information system KW unauthorized access KW security grid JO Modeling of systems and processes AU Rogozin, E.A. AU Khvostov, V.. AU Suhanov, V.V. AU Korobkin, D.I. AU Mochalov, D.A. PY 2021 IS 14 PB FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov