TY JOUR TI DEVELOPMENT OF AN ECONOMICALLY OPTIMAL METHOD FOR ASSESSING THE IMPACT OF THE CHARACTERISTICS AND LOCATION OF FIRE DOOR FITTINGS ON THEIR FIRE RESISTANCE KW optimization of research; economic component of scientific approaches; fire doors; fire resistance of building structures; components of building structures JO MOSCOW ECONOMIC JOURNAL AU Portnov, F.A. PY 2024 IS 9 PB Electronic science