@article{SORT_2009_2009_1_a2,
     author = {Singh, Housila P. and   Kumar, Sunil},
     title = {A general procedure of estimating the population mean in the presence of non-response under double sampling using auxiliary information.},
     journal = {Sort},
     pages = {71-84},
     publisher = {mathdoc},
     volume = {33},
     number = {1},
     year = {2009},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SORT_2009_2009_1_a2/}
}