TY JOUR TI Simulation of the Production Process of Timber Harvesting With the Help of Petri Nets KW wood harvesting KW wood harvesting machinery KW harvester KW forwarder KW simulation modeling KW Petri Nets JO Forestry Engineering Journal PY 2017 IS 7 PB FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov