%0 Journal Article %A P. Sint %T Readings in Economic Statistics and Econometrics - Zellner, A. (Ed.) %J Metrika %D 1972 %P 84-84 %V 19 %I mathdoc %U http://geodesic.mathdoc.fr/item/MET_1972__19_175532/ %F MET_1972__19_175532