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This is to certify that your paper entitled «Evaluating the performance of DFT methods in electric property calculations: Intermediate fused 4,1-dihydropyridines as a test case» was indexed with 2 pages, in the CIVILICA citation database, code COI:KBDC02_129, after evaluation and approval of the referees of the "The Second National Conference on Knowledge Development of Oil, Gas and Petrochemical Industries and the Sixth Conference on Bandar Imam Petrochemical Engineering Day held in Mahshahr 2015.

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.