Content Provider
Directory of Open Access Journals: DOAJ Articles
245
ScienceDirect (Elsevier - via Crossref)
45
Wiley Online Library
34
Wiley Online Library (via Crossref)
21
Lund University Publications (LUP)
19
DataCite Metadata Store (German National Library of Science and Technology)
7
Cambridge University Press
6
University of Calgary Journal Hosting
6
University of California: eScholarship
6
Defense Technical Information Center: DTIC Technical Reports database
5
Northwest Institute of Plateau Biology: NWIPB OpenIR (Chinese Academy of Sciences)
5
Institute of Botany: IBCAS OpenIR (Chinese Academy Of Sciences)
4
De Gruyter (via Crossref)
3
Informa (via Crossref)
3
LSU Digital Commons (Louisiana State University)
3
ScienceDirect (Elsevier)
3
UND Scholarly Commons (University of North Dakota)
3
University of Nebraska-Lincoln: DigitalCommons@UNL
3
Australian National University: ANU Digital Collections
2
Columbia University: Academic Commons
2
IOP Publishing
2
IOP Publishing (via Crossref)
2
Informa
2
OhioLINK: Electronic Theses and Dissertations Center
2
PRISM - University of Calgary Digital Repository
2
Queen's University Belfast Research Portal
2
Research Center for Eco-Environmental Sciences: RCEES OpenIR (Chinese Academy of Sciences)
2
Sciendo (de Gruyter - via CrossRef)
2
Springer Nature (via Crossref)
2
The University of Arizona: UA Campus Repository
2
University of California Press (via Crossref)
2
University of Colorado, Boulder: CU Scholar
2
University of Hull: Repository@Hull
2
University of North Texas: UNT Digital Library
2
University of Zurich (UZH): ZORA (Zurich Open Repository and Archive
2
Antioch University Repository and Archive (AURA)
1
CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas)
1
Cambridge University Press (via Crossref)
1
City University of New York: CUNY Academic Works
1
Colby College: DigitalCommons@Colby
1
DIAL@USL-B (Université Saint-Louis, Bruxelles)
1
Helsingfors Universitet: HELDA – Helsingin yliopiston digitaalinen arkisto
1
IMHE OpenIR (Institute of Mountain Hazards and Environment, Chinese Academy of Sciences)
1
Institute of Hydrobiology, Chinese Academy of Sciences: IHB OpenIR
1
Northern Illinois University (NIU): Huskie Commons Repository
1
Qatar University: QU Institutional Repository
1
The University of Maine: DigitalCommons@UMaine
1
The University of Melbourne: Digital Repository
1
Umeå University: Publications (DiVA)
1
University of California Press
1
more ...