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1by Beckmann, Peter### CRL customization ### ?> ### Add publisher and desc details ### ?>
Published 1936Charlottenburg : Hoffmann, 1936.45 S., [1] Bl : graph. Darst ; 8̊ -
2by Beckmann, Peter### CRL customization ### ?> ### Add publisher and desc details ### ?>
Published 1964Frankfurt, 1964.66 S. mit Abb ; 8.