Jordansche Ungleichung (German Wikipedia)

Analysis of information sources in references of the Wikipedia article "Jordansche Ungleichung" in German language version.

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doi.org

Feng Qi, Da-Wei Niu, Jian Cao: Refinements, Generalizations, and Applications of Jordan’s Inequality and Related Problems. In: Journal of Inequalities and Applications, Band 2009 (52 Seiten), doi:10.1155/2009/271923

wolfram.com

mathworld.wolfram.com

Eric W. Weisstein: Jordan’s inequality. In: MathWorld (englisch).