@article{MZ_1929__29_168100,
     author = {S. Bochner},
     title = {Ein {Satz} \"uber lineare {Operationen.}},
     journal = {Mathematische Zeitschrift},
     pages = {737--743},
     publisher = {mathdoc},
     volume = {29},
     year = {1929},
     zbl = {55.0821.01},
     url = {http://geodesic.mathdoc.fr/item/MZ_1929__29_168100/}
}