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MLA Citation
Zhen-Hang Yang et al.. “Sharp Inequalities for Trigonometric Functions.” Abstract and applied analysis, vol. 2014, 2014, p. . http://access.bl.uk/ark:/81055/vdc_100085690498.0x000045
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Zhen-Hang Yang et al.. “Sharp Inequalities for Trigonometric Functions.” Abstract and applied analysis, vol. 2014, 2014, p. . http://access.bl.uk/ark:/81055/vdc_100085690498.0x000045