TY JOUR TI THE MATHEMATICAL MODELING METHOD OF INJURY-CAUSING SITUATIONS IN THE MANUAL ELECTRIC MACHINE OPERATION KW manual electric machine KW electric safety system KW electric trauma KW event tree KW tree of outcomes KW injury-causing situation JO Bulletin of KSAU AU Yeremina, T.V. AU Kalinin, A.F. PY 2013 IS PB Krasnoyarsk State Agrarian University