%0 Journal Article %A A. S. Rapinchuk %T Multiplicative arithmetic of division algebras over number fields, and the metaplectic problem %J Izvestiya. Mathematics %D 1988 %P 349-379 %V 31 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/IM2_1988_31_2_a5/ %G en %F IM2_1988_31_2_a5