@article{IM2_1987_29_2_a2,
     author = {Yu. A. Drakokhrust and V. P. Platonov},
     title = {The {Hasse} norm principle for algebraic number fields},
     journal = {Izvestiya. Mathematics },
     pages = {299--322},
     publisher = {mathdoc},
     volume = {29},
     number = {2},
     year = {1987},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/IM2_1987_29_2_a2/}
}