Content Provider
Texas A&M University Galveston Campus: DSpace Repository
138
DataCite Metadata Store (German National Library of Science and Technology)
126
Texas A&M University Digital Repository
126
Wiley Online Library
101
Wiley Online Library (via Crossref)
90
ScienceDirect (Elsevier)
83
Unknown
81
ScienceDirect (Elsevier - via Crossref)
72
Springer Nature (via Crossref)
58
Gulf of Mexico Research Initiative (via DataONE)
56
Directory of Open Access Journals: DOAJ Articles
40
PubMed Central (PMC)
35
South Carolina State Library Digital Collections
34
The University of Texas at Austin: Texas ScholarWorks
29
The University of Southern Mississippi: The Aquila Digital Community
28
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer)
27
IODE-UNESCO: OceanDocs - E-Repository of Ocean Publications
26
Digital Commons University of South Florida (USF)
25
International Association of Aquatic and Marine Science Libraries and Information Centers (IAMSLIC): Aquatic Commons
24
The Portal to Texas History (University of North Texas)
24
Institute of Oceanology, Chinese Academy of Sciences: IOCAS-IR
20
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
16
Dryad Digital Repository (Duke University)
13
HighWire Press (Stanford University)
12
Texas A&M University - Corpus Christi: DSpace Repository
12
University of South Florida St. Petersburg: Digital USFSP
12
W&M ScholarWorks
12
Zenodo
12
Canadian Science Publishing (via Crossref)
11
Informa (via Crossref)
11
University of North Texas: UNT Digital Library
10
Hathi Trust Digital Library
9
LSU Digital Commons (Louisiana State University)
9
University of Debrecen Electronic Archive (DEA)
9
University of North Carolina: NC DOCKS (Digital Online Collection of Knowledge and Scholarship)
9
Université de Nantes: HAL-UNIV-NANTES
9
ACS Publications
8
MDPI Open Access Publishing
8
East Carolina University: The ScholarShip at ECU
6
FAU Digital Collections (Florida Atlantic University Digital Library)
6
JSTOR
6
North Carolina State University Libraries (NCSU): Digital Repository
6
Oxford University Press (via Crossref)
6
RePEc (Research Papers in Economics)
6
University of North Carolina: UNC Digital Collections
6
University of St Andrews: Research Portal
6
Data Archiving and Networked Services (DANS): EASY (KNAW - Koninklijke Nederlandse Akademie van Wetenschappen)
5
Defense Technical Information Center: DTIC Technical Reports database
5
Florida State University: Publication of Archival Library & Museum Materials
5
Informa
5
more ...