@article{MAN_1921__83_158868,
     author = {A. Schoenflies},
     title = {Zur {Axiomatik} der {Mengenlehre}},
     journal = {Mathematische Annalen},
     pages = {173--200},
     publisher = {mathdoc},
     volume = {83},
     year = {1921},
     zbl = {48.0198.02},
     url = {http://geodesic.mathdoc.fr/item/MAN_1921__83_158868/}
}