%0 Journal Article %A Jerzy Urbanowicz %T On the 2-primary part of a conjecture of Birch and Tate %J Acta Arithmetica %D 1983 %P 69-81 %V 43 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/aa-43-1-69-81/ %R 10.4064/aa-43-1-69-81 %G en %F 10_4064_aa_43_1_69_81