Data Service: Changes in MARC 21 format for holdings of the German Union Catalogue of Serials (ZDB) from week 20, 2014 and week 21, 2014 (export release 02/2014)
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Frankfurt am Main: Repair work telephone system
On 2 May, the Frankfurt site of the German National Library will be unavailable by telephone from 9.30 - 11.30 due to repair work.
