TY - JOUR AU - S.G. Prabhu Ajgaonkar TI - On Classes of Estimators of the Variance Function of a Linear Estimator. JO - Metrika PY - 1972 SP - 15 EP - 20 VL - 18 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MET_1972__18_175491/ ID - MET_1972__18_175491 ER -