Valovoi, O., Valovoi, M., Pastukhov, S., & Malashenko, V. (2026). ECONOMIC EFFICIENCY AND TECHNICAL JUSTIFICATION OF STRENGTHENING REINFORCED CONCRETE STRUCTURES WITH COMPOSITE MATERIALS IN COMPARISON WITH NEW CONSTRUCTION. Current Problems of Sustainable Development, 3(5), 751-758. https://doi.org/10.60022/3(5)-87S