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@article{MET_1989__36_3-4_176214, author = {A. Chaudhuri and A.K. Adhikary}, title = {On {Efficiency} of the {Ratio} {Estimator.}}, journal = {Metrika}, pages = {55--59}, publisher = {mathdoc}, volume = {36}, number = {3-4}, year = {1989}, zbl = {0677.62005}, url = {http://geodesic.mathdoc.fr/item/MET_1989__36_3-4_176214/} }
A. Chaudhuri; A.K. Adhikary. On Efficiency of the Ratio Estimator.. Metrika, Tome 36 (1989) no. 3-4, pp. 55-59. http://geodesic.mathdoc.fr/item/MET_1989__36_3-4_176214/