%0 Journal Article
%A Giovanni Alessandrini
%A Vincenzo Nesi
%T Beltrami operators, non-symmetric elliptic equations and quantitative Jacobian bounds
%J Annales Fennici Mathematici
%D 2009
%P 47-67
%V 34
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/AFM_2009_34_1_a2/
%G en
%F AFM_2009_34_1_a2