TY  - JOUR
AU  - R.R. Kocherlakota
TI  - Functions of a quaternion variable which are gradients of real-valued functions.
JO  - Aequationes mathematicae
PY  - 1986
SP  - 109
EP  - 117
VL  - 31
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/AM2_1986__31_137147/
ID  - AM2_1986__31_137147
ER  -