TY  - JOUR
AU  - S. I. Dudov
TI  - Directional differentiability of the distance function
JO  - Sbornik. Mathematics
PY  - 1995
SP  - 337
EP  - 358
VL  - 186
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/SM_1995_186_3_a2/
LA  - en
ID  - SM_1995_186_3_a2
ER  -