@article{MZ_1950__52_169111,
     author = {A. KNESCHKE},
     title = {Zur {Theorie} der {Interpolation}},
     journal = {Mathematische Zeitschrift},
     pages = {137--149},
     year = {1950},
     volume = {52},
     zbl = {0033.25903},
     url = {http://geodesic.mathdoc.fr/item/MZ_1950__52_169111/}
}