TY JOUR TI The Prospect of the oil Chemical Cluster Creation in Tula Region KW chemical industry KW petrochemical raw materials KW oil chemical processing KW regional branch cluster KW Tula region 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.