%0 Journal Article
%A S. I. Chelkak
%T Differentiability of solutions of second-order quasilinear elliptic systems
%J Izvestiâ vysših učebnyh zavedenij. Matematika
%D 1986
%P 56-62
%N 4
%I mathdoc
%U http://geodesic.mathdoc.fr/item/IVM_1986_4_a8/
%G ru
%F IVM_1986_4_a8