@article{JRAM_1939__180_150062,
     author = {Heinrich W.E. Jung},
     title = {Zur {Theorie} der algebraischen {Funktionen} zweier {Ver\"anderlicher.} {I.} {Divisorenklassen.}},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {219--244},
     publisher = {mathdoc},
     volume = {180},
     year = {1939},
     zbl = {0023.20204},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1939__180_150062/}
}