@article{JDM_1934__44_146037,
     author = {Ugo Broggi},
     title = {\"Uber die {Potenz} einer {Potenzreihe.}},
     journal = {Jahresbericht der Deutschen Mathematiker-Vereinigung},
     pages = {166--171},
     publisher = {mathdoc},
     volume = {44},
     year = {1934},
     zbl = {0009.34403},
     url = {http://geodesic.mathdoc.fr/item/JDM_1934__44_146037/}
}