In addition to searches on the library portal Primo, you can look into other libraries' holdings and gather information from databases or from the Internet.

Search tools with holdings information

• Library portal Primo for Charité – Universitätsmedizin (in progress): http://primo.fu-berlin.de/charite
  Charité Catalog – incorporates records for printed Freie Universität Berlin items
• KOBV Regional Portal
  Holdings informations for Berlin and Brandenburg libraries with interlibrary-loan options
• KOBV National Portal
  Holdings informations for German libraries with interlibrary-loan options
• Lean Library Accesßs
  Free browser extension that leads you to scientific literature - no matter where you search
• Metasearch engine KVK
  Karlruher Virtueller Katalog – search engine for German and international library holdings as well as the book trade and various digital archives
• Journal Database (ZDB)
  Journal-holdings informations for German libraries with interlibrary-loan options
• Freie Universität Berlin E-Journals (EZB)
  E-journal-holdings information for Freie Universität Berlin plus free e-journals – search extendable to holdings at other libraries
• FU-Datenbanken (in DBIS)
  Information on databases licensed for Freie Universität Berlin plus national licenses and free databanses – search extendable to holdings at other libraries
• Google Scholar
  Search engine developed by Google for general academic literature search
• BASE
  Search engine for repositories and digital collections

Search tools for identifying subject headings and classification codes for subject searches

Please read specifics on Queries for Subject Search.

• OGND
  Authority data on authos, corporations and German-language subject headings
• Regensburg Classification (RVK)
  Database for classification codes
• Dewey Decimal Classification
  Database for classification codes
• Library of Congress Subject Headings
  Database for English-language Library of Congress subject headings