TY - JOUR AU - Abdelkader Benkhaled AU - Abdenour Hamdaoui TI - General Classes of Shrinkage Estimators for the Multivariate Normal Mean with Unknown Variance: Minimaxity and Limit of Risks Ratios JO - Kragujevac Journal of Mathematics PY - 2022 SP - 193 VL - 46 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/KJM_2022_46_2_a1/ LA - en ID - KJM_2022_46_2_a1 ER -