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1by Heydner, Walter### CRL customization ### ?> ### Add publisher and desc details ### ?>
Published 1930Berlin : De Gruyter, 1930.10 S., [1] Bl : graph. Darst ; 8̊“...De Gruyter,...”
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2by Keil, Werner### CRL customization ### ?> ### Add publisher and desc details ### ?>
Published 1927[Berlin] : [de Gruyter], 1927.S. 310-313 ; 8.“...[de Gruyter],...”