%0 Journal Article
%A O. Schürz
%T Business and Economic Statistics -  Spurr, W.A.; Kellogg, L.S.; Smith, J.H.
%J Metrika
%D 1962
%P 215-217
%V 5
%I mathdoc
%U http://geodesic.mathdoc.fr/item/MET_1962__5_175158/
%F MET_1962__5_175158