TY - JOUR TI - Metrika Vol. 31, page 1-4 - A Note on Necessary Best Estimator of Order Two, by Prabhu-Ajgaonkar, Aurangabad JO - Metrika PY - 1985 SP - 64 EP - 64 VL - 32 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MET_1985__32_251879/ ID - MET_1985__32_251879 ER -