TY JOUR TI Economic efficiency of experimental research in the reconstruction of historical buildings KW reconstruction of historical buildings KW experimental research KW economic efficiency KW technical inspection KW historical and cultural value KW object life cycle KW cost management JO JOURNAL OF MONETARY ECONOMICS AND MANAGEMENT AU Petuhova, A.A. AU Yangel', D.A. AU Gulyakin, D.V. PY 2026 IS 0 PB ITBO University