%0 Journal Article %A J. Hagberg %T Approximation of the summation process obtained by sampling from a finite population %J Teoriâ veroâtnostej i ee primeneniâ %D 1973 %P 790-803 %V 18 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/TVP_1973_18_4_a7/ %G en %F TVP_1973_18_4_a7