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This is to certify that your paper entitled «NEURAL NETWORK MODELING OF STRUCTURAL RESPONSE UNDER PERSISTENT EXTERNAL EXCITATIONS» was indexed with 8 pages, in the CIVILICA citation database, code COI:SEE02_063, after evaluation and approval of the referees of the "2nd international Conference on Seismology and Earthquake Engineering held in Tehran 1995.

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.