Xu, Renxu; Xu, Huizuo; Qian, Weimao Optimal bounds for a quasi-arithmetic mean in terms of other bivariate means. (Chinese. English summary) Zbl 1449.26045 Math. Pract. Theory 49, No. 9, 304-310 (2019). MSC: 26D15 26E60 PDF BibTeX XML Cite \textit{R. Xu} et al., Math. Pract. Theory 49, No. 9, 304--310 (2019; Zbl 1449.26045)
Yang, Yueying; Qian, Weimao Optimal inequalities for the Neuman mean in terms of arithmetic and contraharmonic means. (Chinese. English summary) Zbl 1349.26082 Math. Pract. Theory 45, No. 19, 273-279 (2015). MSC: 26E60 26D15 PDF BibTeX XML Cite \textit{Y. Yang} and \textit{W. Qian}, Math. Pract. Theory 45, No. 19, 273--279 (2015; Zbl 1349.26082)