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@article{AM2_1993__46_2-3_137558, author = {Horst Alzer}, title = {An inequality for arithmetic and harmonic means.}, journal = {Aequationes mathematicae}, pages = {257--263}, publisher = {mathdoc}, volume = {46}, number = {2-3}, year = {1993}, zbl = {0785.26012}, url = {http://geodesic.mathdoc.fr/item/AM2_1993__46_2-3_137558/} }
Horst Alzer. An inequality for arithmetic and harmonic means.. Aequationes mathematicae, Tome 46 (1993) no. 2-3, pp. 257-263. http://geodesic.mathdoc.fr/item/AM2_1993__46_2-3_137558/