@misc{MAN_1921__82_158853,
     title = {Zwei philosophische {Preisaufgaben}},
     journal = {Mathematische Annalen},
     pages = {320--320},
     publisher = {mathdoc},
     volume = {82},
     year = {1921},
     url = {http://geodesic.mathdoc.fr/item/MAN_1921__82_158853/}
}