@article{JDM_1939__49_146217,
     author = {E. Bompiani},
     title = {\"Uber zwei {Kalotten} einer {Hyperquadrik.}},
     journal = {Jahresbericht der Deutschen Mathematiker-Vereinigung},
     pages = {143--145},
     publisher = {mathdoc},
     volume = {49},
     year = {1939},
     language = {de},
     url = {http://geodesic.mathdoc.fr/item/JDM_1939__49_146217/}
}