%0 Journal Article %A Jan Nekovář %T On the parity of ranks of Selmer groups. III. %J Documenta mathematica %D 2007 %P 243-274 %V 12 %U http://geodesic.mathdoc.fr/articles/10.4171/dm/225/ %R 10.4171/dm/225 %F 10_4171_dm_225