%0 Journal Article
%A Carlo Cecchini
%T An abstract characterization of ...-conditional expectations.
%J Mathematica Scandinavica
%D 1990
%P 155-160
%V 66
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/MS2_1990__66_1_167101/
%F MS2_1990__66_1_167101