中国科学院数学与系统科学研究院期刊网
On the Optimal Values for Inequalities Involving Power Means
Wan Lan WANG(1), Jia Jin WEN(1
Acta Mathematica Sinica, Chinese Series . 2004, (6): 1053 -106 .  DOI: 10.12386/A2004sxxb0131