00370nam a2200121Ia 4500008004100000082001700041100001700058245010800075260001500183300000600198490001400204490003000218260213b |||||||| |||| 00| 0 eng d a330.183 N147 aNagar, A. I. aBias and moment matrix of the general k-class estimators of the parameters in simultaneous equationsb/ c1959a b  a  vOct. 1959 aEconometrica, v.27, no.4