A best possible double inequality between Seiffert and harmonic means

Yang, Z.-H., Qian, W.-M., Chu, Y.-M.: Monotonicity properties and bounds involving the complete elliptic integrals of the first kind. Qiu, S.-L., Qiu, Y.-F., Wang, M.-K., Chu,

Adil Khan, M., Wu, S.-H., Ullah, H., Chu, Y.-M.: Discrete majorization type inequalities for convex functions on rectangles. Chu, Y.-M., Wang, M.-K.: Optimal Lehmer mean bounds for

Jiang, W.-D., Cao, J., Qi, F.: Sharp inequalities for bounding Seiffert mean in terms of the arithmetic, centroidal, and contra-harmonic means.. Qian, W.-M., Chu, Y.-M.: Sharp bounds

Chu, “Optimal power mean bounds for the weighted geometric mean of classical means,” Journal of Inequalities and Applications , vol.. Wang, “The optimal upper and lower power

Wang, “The optimal convex combination bounds of arithmetic and harmonic means for the Sei ff ert’s mean,” Journal of Inequalities and Applications , Article ID 436457, 7 pages,

Xia, W-F, Chu, Y-M, Wang, G-D: The optimal upper and lower power mean bounds for a convex combination of the arithmetic and logarithmic means.. Chu, Y-M, Xia, W-F: Two optimal

Wang, M-K, Chu, Y-M, Qiu, S-L, Jiang, Y-P: Convexity of the complete elliptic integrals of the first kind with respect to Hölder means.. Qiu, S-L, Qiu, Y-F, Wang, M-K, Chu, Y-M:

Xia, W-F, Chu, Y-M, Wang, G-D: The optimal upper and lower power mean bounds for a convex combination of the arithmetic and logarithmic means.. Long, B-Y, Chu, Y-M: Optimal power