TY JOUR TI Resource Cost Reduction While Planned-Preventive Technical Servicing of Railway Automation Devices on Digital Model Basis KW railway automatics and telemechanics devices KW technical servicing KW technical servicing planning KW digital model JO Transport automation research AU Shvalov, D.V. PY 2022 IS 8 PB FSBEI HE "Emperor Alexander I St. Petersburg State Transport University"