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@article{MET_1994__41_5_176490, author = {Vidyasagar Ramchandra Padmawar}, title = {Stratification, {Midzuno-Sen} {Strategy} and {Nonnegative} {Unbiased} {Variance} {Estimation.}}, journal = {Metrika}, pages = {21--27}, publisher = {mathdoc}, volume = {41}, number = {5}, year = {1994}, zbl = {0791.62008}, url = {http://geodesic.mathdoc.fr/item/MET_1994__41_5_176490/} }
Vidyasagar Ramchandra Padmawar. Stratification, Midzuno-Sen Strategy and Nonnegative Unbiased Variance Estimation.. Metrika, Tome 41 (1994) no. 5, pp. 21-27. http://geodesic.mathdoc.fr/item/MET_1994__41_5_176490/