Hints for searching

Boolean Operators AND, OR, NOT

When you use the Simple Search, all terms are combined by AND automatically. For a more tightly focused search you may use the Boolean Operators to combine different search terms.

AND: The document has to contain all search terms.

OR: The document has to contain one of the search terms. This function broadens your search and is recommended, when there are different terms for the same meaning.

article OR paper

NOT: This function works excluding and might be useful to reduce a large result list: Documents, which contain the one term, may not contain the other.

article NOT paper
The Boolean Operators work for the Advanced Search as well. You may use them to combine different search terms within one search field. For example, to search for documents of the author "Doe" in the years 2002 or 2003, use the query:
Author: Doe
Year: 2002 OR 2003


In the field 'Search:', you may use the symbols '*' and '?' as wildcards. Use them in place of a character or characters that are unknown or that may differ. You cannot use them in front of a word or search string.

Example 1: poli* finds politics but also policy or polity.
Example 2: licen?e finds licence and license.

Phrase search

Phrase search allows to retrieve documents containing an exact sentence or phrase. You may use double quotes (") to search for phrases.

Example: "Understand today. Shape tomorrow"
I have some more questions - whom shall I contact?

Hertie School
Library and Information Services

Friedrichstraße 180
10117 Berlin
phone: +49 (0)30 - 25 92 19 -410
fax: +49 (0)30 - 25 92 19 -111

Document types

The following types of documents can be uploaded to the repository of the Hertie School
  • Article - contribution to an academic journal
  • Periodical contribution – an article that appears in a non-scientific periodical, e.g. magazine or newspaper
  • Journal - complete edition of a periodical published by the Hertie School
  • Book - publication of a book as author
  • Editorship book - publication of a book as editor
  • Part of a book - contribution of chapters or entries to text books, encyclopedias, etc.
  • Case studies - teaching tools based on real-life cases from various subjects and areas
  • Course material - collection of materials made available for certain courses, seminars, etc.
  • Doctoral dissertations
  • Master's theses
  • Lectures
  • Conference proceedings
  • Preprint - draft of a scientific paper that has not been published yet
  • Review
  • Student paper - outstanding contribution by a student of the Hertie School
  • Working paper - a publication that shows results, current state or progress of research projects, etc. Reports, discussion papers or policy papers also fall into this category
Formatting your document

The following formats can be uploaded to Hertie repository --> pdf, txt, html, htm, jpg, avi, mpeg, mp3, doc, docx

The limit to a file's size is 250 MB. If your document exceeds this size, please send it to us on CD or DVD.

Please don’t use copy protection. Using copy protection not only makes it difficult for us to process your document, but also impairs the ability of the German National Library (Deutsche Nationalbibliothek) to indexing the contents of the Hertie repository.

PDF/A = Digital Preservation

Documents on the Hertie Repository are deposited chiefly as PDF/A files. If possible we kindly ask you to upload your document as a PDF/A file, a format used for digital preservation of electronic documents. By converting into PDF/A variable components, such as fonts or pictures, are embedded within the document. This enables your file to be independent from different and ever-changing hardware/software environments.

The possibilities to convert a file into this format are depending on the software you use. If you have any questions please feel free to contact the team of the Hertie Library at any time.
How do I publish my work here?
Please click on the 'Publish' button on the home page.

Please choose a document type and upload your document(s). After agreeing to give the Hertie School's repository a simple right of use, click "Next step". This is the actual form where you can provide details about your publication. This so-called metadata describes a document in catalogues and other bibliographic lists. Depending on the document type, some of these fields are mandatory and therefore have to be completed. Please describe your document as accurately as possible and click "Next step" again.
After completing the form, the data will be displayed for review. Now you can make changes if necessary or save the document directly.

Please note! Uploading a document does not mean it is published. The Hertie Library team will release your document.

What's metadata?
Metadata can be defined as
  • data describing one or more ressources
  • or as
  • data associated with an object and describing it
Basically metadata is describing documents, objects or services and contains information about their content, structure or form. More abstractly metadata is a description of data or "data about data". Bibliographic data sets and catalog entries in library catalogs can be seen as a kind of metadata.

This repository is using metadata in the Dublin Core Metedata Element Set (short Dublin Core (DC)) which has fifteen basic elements. Dublin Core is the result of international efforts to reach a collective consensus in describing electronic objects (in the broadest sense). The Library of Congress (LoC), the Online Cataloging Library Center (OCLC) and several national libraries are dealing with Dublin Core in many projects and are close to introduce the system respectively.

In most cases this is no problem. Many academic publishers allow delayed publicaton of the author's final version in a repository. Please ensure in any case, if your publisher allows a parallel publication! To do that you can use the SHERPA/ROMEO list.
Authors can choose which terms of use must be regarded for their publication. These terms are defined in a license. This repository supports different licenses, from which you can choose one (i.e. Creative Commons Licenses/).
The HSRR provisions are available for download as PDF file. The Hertie School Open Access Policy is hier (PDF) available.
This document server is based on the repository software OPUS4 OPUS is documented here:

Hertie School gGmbH
Quartier 110 • Friedrichstraße 180
10117 Berlin

Trade Register: HRB 97018 B, Local Court, Berlin-Charlottenburg

Referrals and Links
The Hertie School is not responsible for any contents linked or referred to from these pages. If any damage occurs by the use of information presented there, only the author of the respective pages might be liable, not the one who has linked to these pages.

Prof. Dr. Cornelia Woll
Hertie School gGmbH
Quartier 110 • Friedrichstraße 180
10117 Berlin

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