@article{10_4064_sm_1_1_123_139,
     author = {J. Schauder},
     title = {Invarianz des {Gebietes} in {Funktionalra\"umen}},
     journal = {Studia Mathematica},
     pages = {123--139},
     publisher = {mathdoc},
     volume = {1},
     number = {1},
     year = {1929},
     doi = {10.4064/sm-1-1-123-139},
     language = {de},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/sm-1-1-123-139/}
}