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This is to certify that your paper entitled «Introduction of FRP sheets and design criteria for reinforced concrete beams with polymer fibers» was indexed with 11 pages, in the CIVILICA citation database, code COI:SECONGRESS01_059, after evaluation and approval of the referees of the "The first international congress of science, engineering and new technologies 2022.

While offering our congratulations on the indexation of your paper, please be informed that this certificate is prepared based on the information submitted by the secretariat of the above conference and the information contained in the CIVILICA database, and the accuracy of its content can be inquired at any time through link provided at the bottom of the page or scanning the code image.