00666naa#a2200169#i#450# EN\\bibl\83353 20241218215951.3 2413-046X 20240527b2024####ek#y0engy0150####ca RU DEVELOPMENT OF AN ECONOMICALLY OPTIMAL METHOD FOR ASSESSING THE IMPACT OF THE CHARACTERISTICS AND LOCATION OF FIRE DOOR FITTINGS ON THEIR FIRE RESISTANCE Journal article Moscow Electronic science 2024 11 с. Journal article local Экономика. Народное хозяйство. Экономические науки. 33 Portnov Fedor Aleksandrovich ecience.ru