%0 Journal Article %A D.R. Jensen %T On Approximating the Distributions of Friedman's xr2 and Related Statistics. %J Metrika %D 1977 %P 75-86 %V 24 %I mathdoc %U http://geodesic.mathdoc.fr/item/MET_1977__24_175707/ %F MET_1977__24_175707