%0 Journal Article %A Grabovsky, Yury %A Milton, Graeme W. %T Exact relations for composites: Towards a complete solution %J Documenta mathematica %D 1998 %P 623-632 %V ICM Berlin 1998, Vol. III %I mathdoc %U http://geodesic.mathdoc.fr/item/DOCMA_1998__S9__a18/ %G en %F DOCMA_1998__S9__a18