@article{JDM_1909__18_145164,
     author = {R.v. Lilienthal},
     title = {\"Uber {Kurvennetze} ohne {Umwege.}},
     journal = {Jahresbericht der Deutschen Mathematiker-Vereinigung},
     pages = {38--42},
     publisher = {mathdoc},
     volume = {18},
     year = {1909},
     language = {de},
     url = {http://geodesic.mathdoc.fr/item/JDM_1909__18_145164/}
}