%0 Journal Article %A A. Bak %A A. Stepanov %T Subring subgroups of symplectic groups in characteristic~2 %J Algebra i analiz %D 2016 %P 47-61 %V 28 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/AA_2016_28_4_a1/ %G en %F AA_2016_28_4_a1