@article{JDM_1914__23_145418,
     author = {P. Franck},
     title = {\"Uber die paraboloidischen {Fl\"achen.} 2. {Mitteilung.}},
     journal = {Jahresbericht der Deutschen Mathematiker-Vereinigung},
     pages = {343--352},
     publisher = {mathdoc},
     volume = {23},
     year = {1914},
     zbl = {45.0869.03},
     url = {http://geodesic.mathdoc.fr/item/JDM_1914__23_145418/}
}