%0 Journal Article
%A Turksen, I. B.
%T Upper and Lower Set Formulas: Restriction and Modification of the Dempster-Pawlak Formalism
%J International Journal of Applied Mathematics and Computer Science
%D 2002
%P 359-369
%V 12
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/IJAMCS_2002_12_3_a4/
%G en
%F IJAMCS_2002_12_3_a4