Content Provider
Directory of Open Access Journals: DOAJ Articles
188
IODE-UNESCO: OceanDocs - E-Repository of Ocean Publications
152
International Association of Aquatic and Marine Science Libraries and Information Centers (IAMSLIC): Aquatic Commons
72
Ardabil University of Medical Sciences: Research Information Management System
13
Portal of Scientific Journals at Shahid Beheshti University of Medical Science
5
WHO (World Health Organization): Institutional Repository for Information Sharing (IRIS)
3
DataCite Metadata Store (German National Library of Science and Technology)
2
Gallica - bibliothèque numérique de la Bibliothèque nationale de France (BnF)
2
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
1
Hathi Trust Digital Library
1
Lund University Publications (LUP)
1
Zenodo
1