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This is to certify that your paper entitled «Nonlinear Investigation of Magnetic Influence on Dynamic Behaviour of Non-Homogeneous Varying Thickness Circular Plates Resting on Elastic Foundations» was indexed with 25 pages, in the CIVILICA citation database, code COI:JR_JSMA-13-4_006, after evaluation and approval of the referees of the "Journal of Solid Mechanics Vol 13, Issue 4 , Year 2021.

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 journal 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.