@article{10_4064_sm_7_1_155_156,
     author = {J. Schreier},
     title = {Eine {Eigenschaft} abstrakter {Mengen}},
     journal = {Studia Mathematica},
     pages = {155--156},
     publisher = {mathdoc},
     volume = {7},
     number = {1},
     year = {1938},
     doi = {10.4064/sm-7-1-155-156},
     language = {de},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/sm-7-1-155-156/}
}