%0 Journal Article
%A N. Oler
%T On Subgroups of the First Kind.
%J Mathematica Scandinavica
%D 1967
%P 91-92
%V 20
%I mathdoc
%U http://geodesic.mathdoc.fr/item/MS2_1967__20_165984/
%F MS2_1967__20_165984