%0 Journal Article
%A T.J. Rao
%A S. Sengupta
%A B.K. Sinha
%T Some Order Relations Between Selection and Inclusion  Probabilities for PPSWOR Sampling Scheme.
%J Metrika
%D 1991
%P 335-343
%V 38
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/MET_1991__38_2_176369/
%F MET_1991__38_2_176369