%0 Journal Article %A V. É. Kordonskii %T Essential dimension and the second Serre conjecture for exceptional groups %J Matematičeskie zametki %D 2000 %P 539-547 %V 68 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/MZM_2000_68_4_a4/ %G ru %F MZM_2000_68_4_a4