TY JOUR TI FORMALIZED DESCRIPTION OF THE PROCEDURE OF INFORMATION SYSTEM RISK MANAGEMENT KW information system KW risk KW damage KW evaluation KW management effectiveness KW optimization JO Vestnik of Astrakhan State Technical University. Series: Management, computer science and informatics AU Kozunova, S.. AU Kravets, A.. PY 2018 IS 2018 PB Astrakhan State Technical University