@article{BMMS_2010_33_2_a15,
     author = {B. K. Pradhan},
     title = {Regression {Type} {Estimators} of {Finite} {Population} {Variance} {Under} {Multiphase} {Sampling}},
     journal = {Bulletin of the Malaysian Mathematical Society},
     year = {2010},
     volume = {33},
     number = {2},
     url = {http://geodesic.mathdoc.fr/item/BMMS_2010_33_2_a15/}
}