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This is to certify that your paper entitled «Knowledge of Tehran s firefighters in urban events with an emphasis on plasco event in Tehran (Case study: the opinions of German Firefighters)» was indexed with 21 pages, in the CIVILICA citation database, code COI:NFUS04_047, after evaluation and approval of the referees of the "First International conference & Fourth National Conference on Urban Fire Service & Safety held in Tehran 2019.

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.