@article{JDM_1908__17_145108,
     author = {F. Engel},
     title = {Zu der {Studyschen} {Abhandlung.}},
     journal = {Jahresbericht der Deutschen Mathematiker-Vereinigung},
     pages = {143--144},
     publisher = {mathdoc},
     volume = {17},
     year = {1908},
     zbl = {39.0206.03},
     url = {http://geodesic.mathdoc.fr/item/JDM_1908__17_145108/}
}