%0 Journal Article
%A R.R. Kocherlakota
%T Functions of a quaternion variable which are gradients of real-valued functions.
%J Aequationes mathematicae
%D 1986
%P 109-117
%V 31
%I mathdoc
%U http://geodesic.mathdoc.fr/item/AM2_1986__31_137147/
%F AM2_1986__31_137147