TY JOUR TI Reduction of Transportation Costs for Delivering of Welded Rail Segments by Intermediate Storages KW logistics KW track works KW welded rail segments KW resource shipping for track works KW logistics supply chain of welded rail segments KW graph theory KW intermediate storage of welded rail segments JO Bulletin of scientific research results AU Pakulina, E.V. AU Migrov, A.A. AU Perepechenov, A.M. AU Novosel'skiy, I.Y. PY 2026 IS 2026 PB FSBEI HE "Emperor Alexander I St. Petersburg State Transport University"