TY JOUR TI IMPROVING EFFICIENCY OF THE SUPPLY CHAIN BY OPTIMAL DISTRIBUTION CENTER LOCATION KW supply chain KW distribution center KW mathematical optimization KW demand KW points of consumption KW delivery time JO Bulletin of the Angarsk State Technical University AU Poltavskaya, Y.O. PY 2022 IS 1 PB Federal State Funded Educational Establishment of Higher Education «Angarsk State Technical University»