%0 Journal Article %A M.P. Singh %A A.S. Roy %T Interpenetrating Sub-Samples Â? with and without Replacement. %J Metrika %D 1973 %P 230-239 %V 20 %I mathdoc %U http://geodesic.mathdoc.fr/item/MET_1973__20_175611/ %F MET_1973__20_175611