TY  - JOUR
AU  - P. Vojčák
TI  - A Characterization of Hyers--Lang Differentiability in Terms of a Tangent Cone
JO  - Matematičeskie zametki
PY  - 2011
SP  - 214
EP  - 225
VL  - 89
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MZM_2011_89_2_a4/
LA  - ru
ID  - MZM_2011_89_2_a4
ER  -