%0 Journal Article
%A A. N. Shiryaev
%A E. Valkeila
%A L. Yu. Vostrikova
%T On Lower and Upper Functions for Square Integrable Martingales
%J Trudy Matematicheskogo Instituta imeni V.A. Steklova
%D 2002
%P 290-301
%V 237
%I mathdoc
%U http://geodesic.mathdoc.fr/item/TM_2002_237_a18/
%G en
%F TM_2002_237_a18