@article{MET_1982__29_175840,
     author = {M.J. Ahsan and S.U. Khan},
     title = {Optimum {Allocation} in {Multivariate} {Stratified} {Random} {Sampling} with {Overhead} {Cost.}},
     journal = {Metrika},
     pages = {71--78},
     publisher = {mathdoc},
     volume = {29},
     year = {1982},
     zbl = {0494.62010},
     url = {http://geodesic.mathdoc.fr/item/MET_1982__29_175840/}
}