TY  - JOUR
AU  - I. Ya. Guberman
TI  - The differentiability of continuous functions which satisfy certain functional relations
JO  - Izvestiâ vysših učebnyh zavedenij. Matematika
PY  - 1969
SP  - 37
EP  - 43
IS  - 11
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/IVM_1969_11_a3/
LA  - ru
ID  - IVM_1969_11_a3
ER  -