@article{MAN_1966__164_161389,
     author = {K. ZELLER and H. EHLICH},
     title = {Auswertung der {Normen} von {Interpolationsoperatoren.}},
     journal = {Mathematische Annalen},
     pages = {105--112},
     publisher = {mathdoc},
     volume = {164},
     year = {1966},
     zbl = {0136.04604},
     url = {http://geodesic.mathdoc.fr/item/MAN_1966__164_161389/}
}