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This is to certify that your paper entitled «Calculation of Seismic Interaction Forces and Interactioninduced Excitation for Coupled Rigorous-Substructure SSI Analysis» was indexed with 9 pages, in the CIVILICA citation database, code COI:NCCE08_0927, after evaluation and approval of the referees of the "8th National Congress On Civil Engineering held in Babol 2014.

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.