%0 Journal Article %A A. A. Arkhipova %T A~priori estimates near the boundary for the solutions of non-diagonal elliptic systems with strong non-linearity %J Izvestiya. Mathematics %D 2004 %P 243-258 %V 68 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/IM2_2004_68_2_a1/ %G en %F IM2_2004_68_2_a1