BASE Search Engine

BASE (Bielefeld Academic Search Engine) is a multi-disciplinary search engine to scholarly internet resources, created by Bielefeld University Library in Bielefeld, Germany.

It is based on free and open-source software, which harvests metadata from high quality research output originally published in scholarly journals, of which a second copy is made available as Open Access through an institutional repository.

In addition to Open Archives Initiative (OAI) metadata, the library indexes selected web sites and local data collections, all of which can be searched via a single search interface.

Users can search bibliographic metadata including abstracts, if available. Results can be narrowed down using drill down menus (faceted search). Bibliographic data is provided in several formats, and the results may be sorted by multiple fields, such as by author or year of publication.