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This is to certify that your paper entitled «Influence of annealing on anisotropic crystallinestructure of HDPE cast flms» was indexed with 9 pages, in the CIVILICA citation database, code COI:JR_POJ-3-1_005, after evaluation and approval of the referees of the "Polyolefins Journal Vol 3, Issue 1 , Year 2017.

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