is a literature search engine for both print and electronic resources. It includes all items in the local catalogue as well as journal articles, book chapters, books and much more. Access to full text is available for resources that the University of Konstanz has licensed or purchased.

Local Catalogue

Use the local catalogue to easily search for print and e-books, journals and audiovisual materials available at the University of Konstanz. Here you check an item's availability and place holds on borrowed items.


KonSys: Konstanzer Systematik (=Konstanz library classification). The library's holdings are arranged by subject and can be searched and browsed via KonSys. In this search tool you can find clearly arranged shelf locations for a particular subject area.

Further search tools

Search for subject specific literature

The KIM advisory service in the Info Centre and the subject specialists can offer you help with the subject-specific literature search.

DBIS - Database Information System

If you are looking for subject specific literature, it is recommended to search in bibliographic databases. Suitable Subject Databases are listed in our Subject Information System (DBIS).

EZB - Electronic Journals Library

The "Electronic Journals Library" (EZB) is a service to facilitate the use of scholarly journals on the internet. It offers a fast, structured and unified interface to access full-text articles online.

Search for regional literature

The "Bodensee-Datenbank" (Lake Constance Database) offers bibliographic references of literature from 1800 to the present with subject reference to Lake Constance - partly with access to the full text.

The "Regional Katalog"  (Regional Catalogue) is a network catalogue of all libraries from the area of Constance, western Lake Constance, „Oberschwaben“ and "Schwarzwald-Baar-Kreis".

Search nationwide

In Germany, there are large union catalogues, which include a large numbers of titles.


lists the holdings of libraries from ten German federal states, the "Stiftung Preußischer Kulturbesitz" and a large number of other institutions from the fields of science, politics and culture.

KVK - Karlsruhe Virtual Catalogue

The KVK can simultaneously search german and international union library catalogues.

ZDB- German Union Catalogue of Serials

The "ZDB" is the most important database for everything that was and is being published periodically in printed or electronic form and that is available in German and Austrian libraries.