TY  - JOUR
AU  - Kwang-Soon Park
TI  - On the Differentiability of a Distance Function
JO  - Publications de l'Institut Mathématique
PY  - 2008
SP  - 65 
VL  - _N_S_83
IS  - 97
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.2298/PIM0897065P/
DO  - 10.2298/PIM0897065P
LA  - en
ID  - 10_2298_PIM0897065P
ER  -