TY JOUR TI ANALYSIS OF THE SECTORAL STRUCTURE OF RUSSIA'S FOREIGN TRADE KW petroleum products KW foreign trade KW competitiveness JO Scientific Papers Collection of the Angarsk State Technical University AU Tszyan, K.S. AU Litvintseva, Z.O. PY 2022 IS 2022 PB Federal State Funded Educational Establishment of Higher Education «Angarsk State Technical University»