TY  - JOUR
AU  - V. S. Balaganskii
TI  - Sufficient conditions of the metric function of differentiability
JO  - Trudy Instituta matematiki i mehaniki
PY  - 1992
SP  - 84
EP  - 89
VL  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/TIMM_1992_1_a5/
LA  - ru
ID  - TIMM_1992_1_a5
ER  -