%0 Journal Article %A J.W.S. Cassels %T A New Inequality with Application to the Theory of Diophantine Approximation. %J Mathematische Annalen %D 1953 %P 108-118 %V 126 %I mathdoc %U http://geodesic.mathdoc.fr/item/MAN_1953__126_160334/ %F MAN_1953__126_160334