@article{MZ_1968__107_171047,
     author = {Masako Izumi and Shin-Ichi Izumi},
     title = {Hausdorff {Means} and {Gibbs} {Phenomenon.}},
     journal = {Mathematische Zeitschrift},
     pages = {21--32},
     publisher = {mathdoc},
     volume = {107},
     year = {1968},
     zbl = {0159.08601},
     url = {http://geodesic.mathdoc.fr/item/MZ_1968__107_171047/}
}