@article{MAN_1950__122_160230,
     author = {Georg Lockot and Hermann Schmidt},
     title = {\"Uber {Nullgebilde} analytischer {Funktionen} zweier {Ver\"anderlichen,} die in singul\"aren {Stellen} m\"unden. {I.} {Teil}},
     journal = {Mathematische Annalen},
     pages = {411--423},
     publisher = {mathdoc},
     volume = {122},
     year = {1950},
     zbl = {0042.08702},
     url = {http://geodesic.mathdoc.fr/item/MAN_1950__122_160230/}
}