Content Provider
Directory of Open Access Journals: DOAJ Articles
6
MDPI Open Access Publishing
4
University of California: eScholarship
3
Anagrafe della Ricerca d'Ateneo (Universitá degli studi Roma Tre)
2
DataCite Metadata Store (German National Library of Science and Technology)
2
Lund University Publications (LUP)
2
The University of Milan: Archivio Istituzionale della Ricerca (AIR)
2
Université de Genève: Archive ouverte UNIGE
2
Zenodo
2
Caltech Authors (California Institute of Technology)
1
Clark University: Clark Digital Commons
1
Dresden University of Technology: Qucosa
1
Edinburgh Research Archive (ERA - University of Edinburgh)
1
OhioLINK: Electronic Theses and Dissertations Center
1
Repository of the University of Ljubljana (RUL)
1
Science Data Bank (ScienceDB)
1
Woods Hole Scientific Community: WHOAS (Woods Hole Open Access Server)
1
uO Research (University of Ottawa - uOttawa)
1