TY  - JOUR
AU  - David F. Findley
TI  - The Limited Existence Of ...-Derivatives With .....
JO  - Revista colombiana de matematicas
PY  - 1988
SP  - 49
EP  - 50
VL  - 22
IS  - 1-4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/RCM_1988__22_1-4_181806/
ID  - RCM_1988__22_1-4_181806
ER  -