%0 Journal Article %A O. V. Mel'nikov %T Characteristic subgroups and automorphisms of free profinite groups %J Matematičeskie zametki %D 1982 %P 339-349 %V 31 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/MZM_1982_31_3_a1/ %G ru %F MZM_1982_31_3_a1