%0 Journal Article %A A. V. Arutyunov %T Covering of nonlinear maps on a cone in neighborhoods of irregular points %J Matematičeskie zametki %D 2005 %P 483-497 %V 77 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/MZM_2005_77_4_a0/ %G ru %F MZM_2005_77_4_a0