TY  - JOUR
AU  - I. D. Kan
TI  - Differentiability of the Minkowski $?(x)$-function.~III
JO  - Sbornik. Mathematics
PY  - 2019
SP  - 1148
EP  - 1178
VL  - 210
IS  - 8
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/SM_2019_210_8_a3/
LA  - en
ID  - SM_2019_210_8_a3
ER  -