Hongyan, Ma, and Liu Chunrong. “Optimal Convex Combination Bounds of Arithmetic and Second Seiffert Means for Neuman-S´andor Mean”. IJRDO -JOURNAL OF MATHEMATICS 2, no. 12 (December 31, 2016): 17-23. Accessed December 23, 2024. http://cpcontacts.ijrdo.org/index.php/m/article/view/1571.