%0 Journal Article
%A Lynn Erbe
%T A Uniqueness Theorem for Second Order Differential Equations.
%J Mathematische Zeitschrift
%D 1969
%P 92-96
%V 109
%I mathdoc
%U http://geodesic.mathdoc.fr/item/MZ_1969__109_171126/
%F MZ_1969__109_171126