@article{MET_1980__27_186224,
     author = {N. Mukhopadhyay},
     title = {A {Consistent} and {Asymptotically} {Efficient} {Two-Stage} {Procedure} to {Construct} {Fixed} {Width} {Confidence} {Intervals} for the {Mean.}},
     journal = {Metrika},
     pages = {281--284},
     publisher = {mathdoc},
     volume = {27},
     year = {1980},
     zbl = {0449.62028},
     url = {http://geodesic.mathdoc.fr/item/MET_1980__27_186224/}
}