%0 Journal Article
%A Robert Hardt
%A Fang Hua Lin
%T Harmonic maps into round cones and singularities of nematic liquid crystals.
%J Mathematische Zeitschrift
%D 1993
%P 575-594
%V 213
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/MZ_1993__213_1_174547/
%F MZ_1993__213_1_174547