TY JOUR TI Modelling of security in ship computer systems KW system KW network KW threat KW protection KW vulnerability KW mathematical model KW cyber threat KW analysis of variance JO Operation of Maritime Transport AU Frolov, A.V. AU Frolova, E.S. AU Antonov, A.A. AU Novak, А.. PY 2019 IS PB Budget Educational Institution of Higher Education “Admiral Ushakov State Maritime University”