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1by Becker, Heinz### CRL customization ### ?> ### Add publisher and desc details ### ?>
Published 1928Germany : Rheinische Friedrich-Wilhelms-Universität zu Bonn, 1928.30 p. -
2by Becker, Heinz### CRL customization ### ?> ### Add publisher and desc details ### ?>
Published 1976Witterschlick b. Bonn : Schwarzbold, 1976.47 S : graph. Darst., Tab. -
3by Becker, Heinz### CRL customization ### ?> ### Add publisher and desc details ### ?>
Published 1990Germany : Universität Bonn, 1990.92 S : graph. Darst ; 21 cm.