%0 Journal Article %A Rüdiger Göbel %A Simone L. Wallutis %T An algebraic version of the Strong Black Box %J Algebra and discrete mathematics %D 2003 %P 7-45 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/ADM_2003_3_a1/ %G en %F ADM_2003_3_a1