TY  - JOUR
AU  - Zbigniew Gajda
TI  - Difference properties of higher orders for continuity and Riemann integrability
JO  - Colloquium Mathematicum
PY  - 1987
SP  - 275
EP  - 288
VL  - 53
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.4064/cm-53-2-275-288/
DO  - 10.4064/cm-53-2-275-288
LA  - en
ID  - 10_4064_cm_53_2_275_288
ER  -