%0 Journal Article %A K. Gröger %A J. Rehberg %T Uniqueness for the two-dimensional semiconductor equations in case of high carrier densities. %J Mathematische Zeitschrift %D 1993 %P 523-530 %V 213 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/MZ_1993__213_1_174544/ %F MZ_1993__213_1_174544