@article{MZ_1950__52_169147,
     author = {F. G. TRICOMI},
     title = {\"Uber die {Abz\"ahlung} der {Nullstellen} der konfluenten hypergeometrischen {Funktionen}},
     journal = {Mathematische Zeitschrift},
     pages = {669--675},
     publisher = {mathdoc},
     volume = {52},
     year = {1950},
     zbl = {0045.34502},
     url = {http://geodesic.mathdoc.fr/item/MZ_1950__52_169147/}
}