%0 Journal Article
%A J.J. Schäffer
%T Linear Differential Equations and Functional Analysis. VII. Equations on (? ..., + ...).
%J Mathematische Annalen
%D 1963
%P 1-32
%V 149
%I mathdoc
%U http://geodesic.mathdoc.fr/item/MAN_1963__149_161009/
%F MAN_1963__149_161009