%0 Journal Article %A Reinhard Racke %T Uniqueness for first-order hyperbolic systems - with applications to secnd-order elliptic third-order and Maxwell's equations. %J Journal für die reine und angewandte Mathematik %D 1987 %P 187-196 %V 377 %I mathdoc %U http://geodesic.mathdoc.fr/item/JRAM_1987__377_152935/ %F JRAM_1987__377_152935