@article{05689873,
title = {Two sharp inequalities for power mean, geometric mean, and harmonic mean.},
journal = {Journal of Inequalities and Applications [electronic only]},
volume = {2009},
year = {2009},
doi = {10.1155/2009/741923},
zbl = {1187.26013},
language = {en},
url = {http://dml.mathdoc.fr/item/05689873}
}
Chu, Yu-Ming; Xia, Wei-Feng. Two sharp inequalities for power mean, geometric mean, and harmonic mean.. Journal of Inequalities and Applications [electronic only], Tome 2009 (2009) . doi : 10.1155/2009/741923. http://gdmltest.u-ga.fr/item/05689873/