%0 Journal Article
%A R.M. Redheffer
%T The Riccati Equation: Initial Values and Inequalities.
%J Mathematische Annalen
%D 1957
%P 235-250
%V 133
%I mathdoc
%U http://geodesic.mathdoc.fr/item/MAN_1957__133_160547/
%F MAN_1957__133_160547