@article{JDM_1917__25_145473,
     author = {Erwin Papperitz},
     title = {Zur {Relativit\"atstheorie.}},
     journal = {Jahresbericht der Deutschen Mathematiker-Vereinigung},
     pages = {84--95},
     year = {1917},
     volume = {25},
     language = {de},
     url = {http://geodesic.mathdoc.fr/item/JDM_1917__25_145473/}
}