@article{GDZPPN002449595, title = {On Generalized Estimators in Sampling from Finite Populations}, journal = {Metrika}, volume = {9}, year = {1965}, pages = {234-239}, zbl = {0136.40202}, url = {http://dml.mathdoc.fr/item/GDZPPN002449595} }
Subrahmanya, M.T. On Generalized Estimators in Sampling from Finite Populations. Metrika, Tome 9 (1965) pp. 234-239. http://gdmltest.u-ga.fr/item/GDZPPN002449595/