Abstracting/Indexing

Academia.edu

Academic Resource Index Researchbib

Berlin Social Science Center, WZB

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)

Google Scholar

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

Leuphana Universität Lüneburg

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

WILBERT, Wildauer Bücher+E-Medien Recherche-Tool

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

Zenodo