Abstracting/Indexing

Academia.edu

Academic Resource Index Researchbib

Catalogue of Hamburg Libraries – Beluga

Berlin Social Science Center, WZB

Directory of Open Access Journals (DOAJ)

Directory of Research Journals Indexing

Elektronische Zeitschriftenbibliothek provided by Hochschule Hannover University of Applied Sciences and Arts

Hochschule Zittau/Görlitz University of Applied Sciences

Internet Archive

International Committee of Medical Journal Editors (ICMJE)

German Cancer Research CenterCaRLO Cancer Research Library Online

Google Scholar

Leibniz Information Center for Science and Technology University Library (TIB)

Leuphana Universität Lüneburg

National Library of Finland

NSD – Norwegian Centre for Research Data, Norwegian Register for Scientific Journals, Series and Publishers

Revistas científicas electrónicas IBT-CCG UNAM

Social Science Research Center Berlin, Electronic Journals Library, EZB provided by University Library of Regensburg and Federal Ministry of Education and Research, Germany

UNIVERSITÄTS BIBILIOTHEK LEIPZIG (UBL)

Universität Hamburg

University of Vechta

WILBERT, Wildauer Bücher+E-Medien Recherche-Tool

WorldCat

ZDB Zeitschriften Datenbank provided by Deutsche National Bibliothek and Staatsbibliothek zu Berlin

Zenodo