%0 Journal Article
%A Ivan SINGER
%T On Biorthogonal Systems and Total Sequences of Functionals.
%J Mathematische Annalen
%D 1971
%P 183-188
%V 193
%I mathdoc
%U http://geodesic.mathdoc.fr/item/MAN_1971__193_182718/
%F MAN_1971__193_182718