%0 Journal Article
%A Hans Schwerdtfeger
%T Invariants of a class of transformation groups.
%J Aequationes mathematicae
%D 1976
%P 105-110
%V 14
%I mathdoc
%U http://geodesic.mathdoc.fr/item/AM2_1976__14_136569/
%F AM2_1976__14_136569