TY JOUR TI SAFETY RISK ASSESSMENT OF INFORMATION SYSTEMS PROCESSING CONFIDENTIAL INFORMATION KW information systems KW confidential information KW estimate of safety risk KW Churchman-Ackoff method JO Bulletin of Bryansk state technical university AU Shinakov, K.. AU Rytov, M.Y. AU Golembiovskaya , O.. AU Chirkova, K.. PY 2016 IS 2016 PB Bryansk State Technical University