@article{MET_1976__23_186158,
     author = {N.D. Shukla},
     title = {Almost {Unbiased} {Product-Type} {Estimator.}},
     journal = {Metrika},
     pages = {127--134},
     year = {1976},
     volume = {23},
     zbl = {0359.62023},
     url = {http://geodesic.mathdoc.fr/item/MET_1976__23_186158/}
}