@article{IM_1968__5_141913,
     author = {M. DEURING},
     title = {Imagin\"are quadratische {Zahlk\"orper} mit der {Klassenzahl} {Eins.}},
     journal = {Inventiones mathematicae},
     pages = {169--179},
     publisher = {mathdoc},
     volume = {5},
     year = {1968},
     zbl = {0155.38001},
     url = {http://geodesic.mathdoc.fr/item/IM_1968__5_141913/}
}