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This is to certify that your paper entitled «Sensing performance of boron nitride nanosheets to a toxic gas cyanogen chloride: Computational exploring» was indexed with 6 pages, in the CIVILICA citation database, code COI:JR_CHRL-2-4_001, after evaluation and approval of the referees of the "Chemical Review and Letters Vol 2, Issue 4 , Year 2023.

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