%0 Journal Article %A V. I. Danilov %T Nonsimplicity of the group of unimodular automorphisms of the affine plane %J Matematičeskie zametki %D 1974 %P 289-293 %V 15 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/MZM_1974_15_2_a14/ %G ru %F MZM_1974_15_2_a14