@article{10_4153_CMB_1979_063_0,
     author = {Kardos, Peter},
     title = {On the {Inequality}},
     journal = {Canadian mathematical bulletin},
     pages = {483--489},
     year = {1979},
     volume = {22},
     number = {4},
     doi = {10.4153/CMB-1979-063-0},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CMB-1979-063-0/}
}