@article{10_4064_sm_4_1_134_141,
     author = {J. Schreier and S. Ulam},
     title = {\"Uber die {Permutationsgruppe} der nat\"urlichen {Zahlenfolge}},
     journal = {Studia Mathematica},
     pages = {134--141},
     publisher = {mathdoc},
     volume = {4},
     number = {1},
     year = {1933},
     doi = {10.4064/sm-4-1-134-141},
     language = {de},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/sm-4-1-134-141/}
}