%0 Journal Article
%A Shum, D. T.
%T A General and Sharpened form of Opial's Inequality
%J Canadian mathematical bulletin
%D 1974
%P 385-389
%V 17
%N 3
%U http://geodesic.mathdoc.fr/articles/10.4153/CMB-1974-071-5/
%R 10.4153/CMB-1974-071-5
%F 10_4153_CMB_1974_071_5