%0 Journal Article
%A Yunmei Chen
%T The Weak Solutions to the Evolution Problems of Harmonic Maps.
%J Mathematische Zeitschrift
%D 1989
%P 69-74
%V 201
%N 4
%I mathdoc
%U http://geodesic.mathdoc.fr/item/MZ_1989__201_4_174035/
%F MZ_1989__201_4_174035