%0 Journal Article %T Metrika Vol. 31, page 1-4 - A Note on Necessary Best Estimator of Order Two, by Prabhu-Ajgaonkar, Aurangabad %J Metrika %D 1985 %P 64-64 %V 32 %I mathdoc %U http://geodesic.mathdoc.fr/item/MET_1985__32_251879/ %F MET_1985__32_251879