@article{MZ_1933__36_168408,
     author = {R., Rado},
     title = {Studien zur {Kombinatorik}},
     journal = {Mathematische Zeitschrift},
     pages = {424--480},
     year = {1933},
     volume = {36},
     language = {de},
     url = {http://geodesic.mathdoc.fr/item/MZ_1933__36_168408/}
}