This is an old revision of this dataset, as edited at March 8, 2012, 13:47 (Etc/UTC). It may differ significantly from the current revision.

Data from the hbz Union Catalog

There are daily updated library metadata dumps from the hbz Union Catalog, those records which have holdings from libraries who want their data to be open. There are more than 10 million records.

These libraries are: USB Cologne; Cologne University of Applied Sciences Library;
Library Centre of Rhineland-Palatinate (catalog of RLB Koblenz); Rhineland-Palatinate (catalog of PLB Speyer);
Library Centre of Rhineland-Palatinate (catalog of BB Zweibrücken); Central Library of Sports Science; RWTH Aachen University Library catalog; German National Library of Medicine, Specialist; Library of Nutritional, the Environmental, and Agricultural Sciences; German National Library of Medicine (ZB MED);
Dortmund University Library; Duisburg-Essen University Library,Campus Essen; Duisburg-Essen University Library, Campus Duisburg; Bochum Ruhr University Library and all Institutions;
Rhein-Waal University Library; Rhein-Waal University Library section Kamp-Lintfort;
Dortmund College Library;
FHB Dortmund; Hochschule Ostwestfalen-Lippe;
Fachhochschule Aachen; Fachhochschule Gelsenkirchen;
FHB Bielefeld; Hochschule Niederrhein; Fachhochschule Südwestfalen, Fachbibliothek Hagen, Zentralbibliothek;
Universitäts- und Landesbibliothek Münster all 160 Institutions;
Fachhochschule Münster, Hochschulbibliothek;
Hochschulbibliothek der Fachhochschule Düsseldorf; Universitäts- und Landesbibliothek Bonn and all institutions.

More may follow.

For more information see [] (

The record format is described here. There also is a Linked Data version of the data from all libraries, see

Data and Resources

Additional Info

Field Value
Source published Open Data exports
Author North Rhine-Westphalian Library Service Center
Maintainer North Rhine-Westphalian Library Service Center
Version 2012-03-08
Last Updated October 30, 2014, 17:25 (Etc/UTC)
Created June 10, 2010, 12:22 (Etc/UTC)
publishingInstitution,,,,,,,,,,,,,,,,,,,,,, ,,
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