@article{MET_1982__29_175850, author = {P. Mukhopadhyay}, title = {Optimum {Strategies} for {Estimating} the {Variance} of a {Finite} {Population} {Under} a {Superpopulation} {Model.}}, journal = {Metrika}, pages = {143--158}, publisher = {mathdoc}, volume = {29}, year = {1982}, zbl = {0514.62017}, url = {http://geodesic.mathdoc.fr/item/MET_1982__29_175850/} }