@article{10_4153_CMB_1989_030_4,
     author = {Alzer, Horst},
     title = {On {Weighted} {Geometric} {Means}},
     journal = {Canadian mathematical bulletin},
     pages = {199--206},
     year = {1989},
     volume = {32},
     number = {2},
     doi = {10.4153/CMB-1989-030-4},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CMB-1989-030-4/}
}