TY JOUR TI Tula Gas Chemical Cluster as Driver of The Regional Economic Growth KW chemical industry KW gas chemical processing KW regional branch cluster KW Tula region KW actual Russian tendencies JO Scientific Research and Development. Economics AU Lomovcev, D.A. AU Kizimov, M.N. AU Shevarin, P.G. PY 2025 IS 13 PB INFRA-M Academic Publishing LLC.