@article{JRAM_1885__98_148610,
     author = {J. Weingarten},
     title = {Note \"uber die {Brennlinien} eines unendlich d\"unnen {Strahlenb\"undels.}},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {281--283},
     publisher = {mathdoc},
     volume = {98},
     year = {1885},
     zbl = {17.0778.01},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1885__98_148610/}
}