%0 Journal Article
%A M. Giaquinta
%A G. Modica
%A J. Soucek
%T Graphs of finite mass which annot be approximated in area by smooth graphs.
%J Manuscripta mathematica
%D 1993
%P 259-272
%V 78
%N 4
%I mathdoc
%U http://geodesic.mathdoc.fr/item/MM2_1993__78_4_155807/
%F MM2_1993__78_4_155807