TY JOUR TI Investigation of multilevel models of car traffic management at port stations using the theory of differential equations KW Transport systems KW railway transport KW port stations KW organization of transport production KW stability of control systems KW differential equations KW computer mathematics systems JO Bulletin of scientific research results AU Chebotareva, E.A. PY 2024 IS 2024 PB FSBEI HE "Emperor Alexander I St. Petersburg State Transport University"