@article{JDM_1918__27_145545,
     author = {Rudolf Sturm},
     title = {Herstellung von {Polaren.}},
     journal = {Jahresbericht der Deutschen Mathematiker-Vereinigung},
     pages = {175--178},
     publisher = {mathdoc},
     volume = {27},
     year = {1918},
     language = {de},
     url = {http://geodesic.mathdoc.fr/item/JDM_1918__27_145545/}
}