@article{MZ_1962__78_170039,
     author = {Wolfgang M\"uller},
     title = {\"Uber eine {Ungleichung} zwischen den {Normen} von f, f' und f''.},
     journal = {Mathematische Zeitschrift},
     pages = {420--422},
     publisher = {mathdoc},
     volume = {78},
     year = {1962},
     zbl = {0133.00603},
     url = {http://geodesic.mathdoc.fr/item/MZ_1962__78_170039/}
}