%0 Journal Article %A E. V. Tyurikov %T The nonlinear Riemann--Hilbert boundary value problem for quasilinear elliptic systems %J Doklady Akademii Nauk %D 1979 %P 1068-1072 %V 247 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1979_247_5_a9/ %G ru %F DAN_1979_247_5_a9