@article{MET_1993__40_2_176455,
     author = {C.H. Kapadia and Kwan R. Lee},
     title = {Combined {Unbiased} {Estimators} {Based} on {Q-Reduced} {Model.}},
     journal = {Metrika},
     pages = {137--147},
     publisher = {mathdoc},
     volume = {40},
     number = {2},
     year = {1993},
     zbl = {0775.62188},
     url = {http://geodesic.mathdoc.fr/item/MET_1993__40_2_176455/}
}