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1by Bürger, Helmut### CRL customization ### ?> ### Add publisher and desc details ### ?>
Published 1958Hamburg : Photocopie, 1958.87 S : Ill ; 8. -
2by Bürger, Helmut### CRL customization ### ?> ### Add publisher and desc details ### ?>
Published 1970Germany : Rheinisch-Westfälische Technische Hochschule Aachen, 1970.64 p.