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
InfoMED Professionals is the National Center for Medical Sciences Information in Spain.
International Committee of Medical Journal Editors (ICMJE)
German Cancer Research Center, CaRLO Cancer Research Library Online
Leibniz Information Center for Science and Technology University Library (TIB)
LIBRIS provided by National Library of Sweden.
NSD – Norwegian Centre for Research Data, Norwegian Register for Scientific Journals, Series and Publishers
OVID LinkSolver provided by Wolters Kluwer.
Revistas científicas electrónicas IBT-CCG UNAM
SaludMadrid is the body responsible for the system of public health services in the Community of Madrid.
Social Science Research Center Berlin, Electronic Journals Library, EZB provided by University Library of Regensburg and Federal Ministry of Education and Research, Germany
Stanford University, California, US
UNIVERSITÄTS BIBILIOTHEK LEIPZIG (UBL)
University of Saskatchewan, Canada
Vanderbilt University, Nashville, US
Vrije Universiteit Brussel, Belgium
WILBERT, Wildauer Bücher+E-Medien Recherche-Tool
ZDB Zeitschriften Datenbank provided by Deutsche National Bibliothek and Staatsbibliothek zu Berlin