TY JOUR TI CONCEPTUAL MODEL OF MULTISTAGE PLANNING WHEN DESIGNING A CARGO DISTRIBUTION SYSTEM KW transport KW model KW planning KW cargo distribution JO Modern Technologies and Scientific and Technological Progress AU Lebedeva, O.A. AU Savvateeva, E.Y. PY 2024 IS 2024 PB Federal State Funded Educational Establishment of Higher Education «Angarsk State Technical University»