%0 Journal Article
%A O. Martio
%A J. Väisälä
%T Elliptic Equations and Maps of Bounded Length Disortion.
%J Mathematische Annalen
%D 1988
%P 423-444
%V 282
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/MAN_1988__282_2_164471/
%F MAN_1988__282_2_164471