TY JOUR TI Allocation of Procurement Costs under the Conditions of Using the Deferral Strategy in Supply Chains KW purchasing costs KW deferral strategy in the CP KW logistics costs KW cost allocation problem KW delayed product differentiation KW graph coloring KW graph chromatic number KW graph chromatic polynomial KW hypergraphs JO Scientific Research and Development. Economics AU Mironov, V.L. AU Abramova, E.R. PY 2024 IS 12 PB INFRA-M Academic Publishing LLC.