TY  - JOUR
AU  - R. Boas
TI  - Differentiability of jump functions
JO  - Colloquium Mathematicum
PY  - 1961
SP  - 81
EP  - 82
VL  - 8
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.4064/cm-8-1-81-82/
DO  - 10.4064/cm-8-1-81-82
LA  - en
ID  - 10_4064_cm_8_1_81_82
ER  -