@article{10_4064_cm100_1_11,
     author = {Alfred Witkowski},
     title = {Weighted extended mean values},
     journal = {Colloquium Mathematicum},
     pages = {111--117},
     publisher = {mathdoc},
     volume = {100},
     number = {1},
     year = {2004},
     doi = {10.4064/cm100-1-11},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/cm100-1-11/}
}