@article{JRAM_1911__140_149354,
     author = {Rudolf Sturm},
     title = {Zur {Jacobischen} {Erzeugung} der {Fl\"achen} 2. {Grades.}},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {33--47},
     publisher = {mathdoc},
     volume = {140},
     year = {1911},
     zbl = {42.0574.01},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1911__140_149354/}
}