TY JOUR TI PERFORMANCE INDICATORS OF OPERATIONS, CALCULATED ACCORDING TO FINANCIAL STATEMENTS PREPARED IN ACCORDANCE WITH RAS, IFRS AND US GAAP KW performance activity KW the financial statements KW EBIT KW EBITDA KW EBT KW OIBIT KW OIBDA KW ROACE KW OIBD Amargin and Operating margin. JO Journal of economic studies AU Samylin, A.. PY 2015 IS 1 PB INFRA-M Academic Publishing LLC.