%0 Journal Article
%A Yngve Domar
%T A Theorem of Beurling-Helson Type.
%J Mathematica Scandinavica
%D 1973
%P 139-144
%V 33
%I mathdoc
%U http://geodesic.mathdoc.fr/item/MS2_1973__33_166320/
%F MS2_1973__33_166320