%0 Journal Article %A Mehra, K. L. %A Ramachandramurty, P. V. %T On Unbiased Estimation of a Vector Parameter %J Canadian mathematical bulletin %D 1972 %P 547-550 %V 15 %N 4 %U http://geodesic.mathdoc.fr/articles/10.4153/CMB-1972-096-3/ %R 10.4153/CMB-1972-096-3 %F 10_4153_CMB_1972_096_3