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This is to certify that your paper entitled «Influence of reaction conditions on catalytic properties of rac-Et(۲-MeInd)۲ZrMe۲/(۲,۶-tBu۲PhO-)AliBu۲ in ethylene-propylene copolymerization» was indexed with 6 pages, in the CIVILICA citation database, code COI:JR_POJ-10-4_002, after evaluation and approval of the referees of the "Polyolefins Journal Vol 10, Issue 4 , Year 2023.

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.