TY  - JOUR
AU  - E. Stein
AU  - A. Zygmund
TI  - On the differentiability of functions
JO  - Studia Mathematica
PY  - 1963
SP  - 247
EP  - 283
VL  - 23
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.4064/sm-23-3-247-283/
DO  - 10.4064/sm-23-3-247-283
LA  - en
ID  - 10_4064_sm_23_3_247_283
ER  -