%0 Journal Article %A D.R. Heath-Brown %T The size of Selmer groups for the congruent number problem, II. %J Inventiones mathematicae %D 1994 %P 331-370 %V 118 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/IM_1994__118_1_144239/ %F IM_1994__118_1_144239