TY JOUR TI The Investment Structural Transformation in the Russian Mechanical Engineering KW civil engineering KW defense-industrial sector KW investment project KW technological sovereignty KW actual Russian tendencies JO Scientific Research and Development. Economics AU Lomovcev, D.A. AU Bobkov, A.S. AU Lomovcev, P.D. PY 2026 IS 14 PB INFRA-M Academic Publishing LLC.