%0 Journal Article %A Thomas Müller-Gronbach %A Rainer Schwabe %T On Optimal Allocations for Estimating the Surface of a Random Field. %J Metrika %D 1996 %P 239-258 %V 44 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/MET_1996__44_3_176695/ %F MET_1996__44_3_176695