@article{JRAM_1965__217_150658,
     author = {Peter Scherk},
     title = {On a theorem of {Mann} and {Dyson.}},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {49--63},
     publisher = {mathdoc},
     volume = {217},
     year = {1965},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1965__217_150658/}
}