Sun, Z., & Zhu, L. Some Refinements of Inequalities for Circular Functions. Wiley.
Chicago Style (17th ed.) CitationSun, Zhengjie, and Ling Zhu. Some Refinements of Inequalities for Circular Functions. Wiley.
MLA (9th ed.) CitationSun, Zhengjie, and Ling Zhu. Some Refinements of Inequalities for Circular Functions. Wiley.
Warning: These citations may not always be 100% accurate.