%0 Journal Article
%A Kwang-Soon Park
%T On the Differentiability of a Distance Function
%J Publications de l'Institut Mathématique
%D 2008
%P 65 
%V _N_S_83
%N 97
%I mathdoc
%U http://geodesic.mathdoc.fr/articles/10.2298/PIM0897065P/
%R 10.2298/PIM0897065P
%G en
%F 10_2298_PIM0897065P