The KOBV Portal is the regional library portal for Berlin and Brandenburg. It contains almost all the library holdings from Berlin and Brandenburg KOBV libraries. The current version of the portal contains 83 online catalogs with the holdings of several hundred libraries (data status).
The current version 3.9.0 of the KOBV portal is primarily a code release. A lot of code has been adapted and improved for this. The Crossref articles are now enriched on the basis of the Zeitschriftendatenbank (ZDB) with information on Fachinformationsdiensten (FID), Sondersammelgebieten (SSG) and Regensburger Verbundklassifikation (RVK).
More detailed information on the portal can be found in the KOBV portal help.