%0 Journal Article %T Energy, angular momentum and wave action associated with density waves in a rotating magnetized gas disc %A Fan, Zuhui %A Lou, Yu-Qing %J Monthly Notices of the Royal Astronomical Society %V 307 %N 3 %P 645-658 %@ 0035-8711 %D 1999-08-11 %I The Royal Astronomical Society %~ DeepDyve