%0 Journal Article
%A A. Chaudhuri
%A A.K. Adhikary
%T On Efficiency of the Ratio Estimator.
%J Metrika
%D 1989
%P 55-59
%V 36
%N 3-4
%I mathdoc
%U http://geodesic.mathdoc.fr/item/MET_1989__36_3-4_176214/
%F MET_1989__36_3-4_176214