@article{MAN_1962__148_160983,
     author = {H. Zassenhaus and E.C. DADE and TAUSSKY O.},
     title = {On the theory of orders, in particular on the semigroup of ideal classes and genera of an order in an algebraic number field.},
     journal = {Mathematische Annalen},
     pages = {31--64},
     publisher = {mathdoc},
     volume = {148},
     year = {1962},
     zbl = {0113.26504},
     url = {http://geodesic.mathdoc.fr/item/MAN_1962__148_160983/}
}