@article{ELMA_1981__36_141267,
     author = {Otto Volk},
     title = {Franciscus {Vieta} und die {Eulersche} {Identit\"at} {(Quaternionen).}},
     journal = {Elemente der Mathematik},
     pages = {115--121},
     publisher = {mathdoc},
     volume = {36},
     year = {1981},
     zbl = {0464.01001},
     url = {http://geodesic.mathdoc.fr/item/ELMA_1981__36_141267/}
}