TY JOUR TI A multi-criteria approach to the selection of options for creating a railway network KW railways KW topology of the railway network KW communication routes KW problem regions KW underdeveloped area KW graph theory KW depressed area KW multi-criteria task KW justification for the creation of a railway network JO Proceedings of Petersburg Transport University AU Medvedeva, N.A. AU Shvarcfel'd, V.S. PY 2024 IS 21 PB FSBEI HE "Emperor Alexander I St. Petersburg State Transport University"