@article{MAN_1949__121_160170,
     author = {Roland Sprague},
     title = {\"Uber ein {Anordnungsproblem.}},
     journal = {Mathematische Annalen},
     pages = {52--53},
     publisher = {mathdoc},
     volume = {121},
     year = {1949},
     zbl = {0033.34203},
     url = {http://geodesic.mathdoc.fr/item/MAN_1949__121_160170/}
}