TY JOUR TI DIAGNOSIS OF UNAUTHORIZED SELECTION OF THE WORKING ENVIRONMENT AND ENSURING THE SAFE OPERATION OF HYDRAULIC SYSTEMS KW Diagnosis KW siphoning selection KW hydraulic systems KW mathematical modeling JO Modeling of systems and processes AU Sazonova, S.. PY 2015 IS 8 PB FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov