TY JOUR TI Methodology for distributing empty container flows within a transport and logistics center KW container KW transport and logistics system KW transport and logistics center KW railway station KW multimodal transportation KW mathematical problem KW algorithm KW planning system JO Bulletin of scientific research results AU Askenderova, D.S. AU Kaykina, E.A. AU Novichihin, A.V. PY 2026 IS 2026 PB FSBEI HE "Emperor Alexander I St. Petersburg State Transport University"