@article{GDZPPN002450313, title = {On the Efficiency of Systematic Sampling in Ratio and Product Estimation}, journal = {Metrika}, volume = {12}, year = {1967}, pages = {199-205}, url = {http://dml.mathdoc.fr/item/GDZPPN002450313} }
Singh, M.P. On the Efficiency of Systematic Sampling in Ratio and Product Estimation. Metrika, Tome 12 (1967) pp. 199-205. http://gdmltest.u-ga.fr/item/GDZPPN002450313/