%0 Journal Article %A John W. Jones %T A comparison of Selmer groups. %J Manuscripta mathematica %D 1990 %P 391-398 %V 68 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/MM2_1990__68_2_155535/ %F MM2_1990__68_2_155535