%0 Journal Article %A Abdelkader Benkhaled %A Abdenour Hamdaoui %T General Classes of Shrinkage Estimators for the Multivariate Normal Mean with Unknown Variance: Minimaxity and Limit of Risks Ratios %J Kragujevac Journal of Mathematics %D 2022 %P 193 %V 46 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/KJM_2022_46_2_a1/ %G en %F KJM_2022_46_2_a1