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by Becker, Heinz
by Becker, Thomas (CON); Geppert, Dominik (CON); Schmoeckel, Mathias (CON); et al.
by Karl-Heinz Becker , Michael Dörfler , Translated by I. Stewart
by Altenhofer, Erich (CON); Becker, Frank (CON); Beste, Heinz-Jurgen (CON); et al.
by Becker, Heinz; Becker, Gudrun
by Becker, Heinz; Markus, Peter M.