@article{JDM_1902__11_144866,
     author = {Robert Fricke},
     title = {Erwiderung.},
     journal = {Jahresbericht der Deutschen Mathematiker-Vereinigung},
     pages = {425--425},
     publisher = {mathdoc},
     volume = {11},
     year = {1902},
     url = {http://geodesic.mathdoc.fr/item/JDM_1902__11_144866/}
}