Content Provider
Biodiversity Heritage Library (BHL)
105
Peking University Institutional Repository (PKU IR)
78
Biblioteca Digital FCEN-UBA (Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires)
9
Directory of Open Access Journals: DOAJ Journals
8
University of Lethbridge Digitized Collections
7
Wichita State University: SOAR (Shocker Open Access Repository)
7
The University of Texas at Austin: Texas ScholarWorks
5
Tohoku University Repository (TOUR)
5
UNESDOC - UNESCO Digital Library
3
University of Minnesota Digital Conservancy
3
ASSAf Research Respository (Academy of Science of South Africa)
2
CONICET Digital (Consejo Nacional de Investigaciones CientÃficas y Técnicas)
2
National Tsing Hua University Institutional Repository (NTHUR)
2
Naval Postgraduate School: Calhoun
2
University of Alaska: ScholarWorks@UA
2
University of North Texas: UNT Digital Library
2
DataCite Metadata Store (German National Library of Science and Technology)
1
Georgia Institute of Technology: SMARTech - Scholarly Materials and Research at Georgia Tech
1
Ohio State University (OSU): Knowledge Bank
1
ScholarSpace at University of Hawaii at Manoa
1
The University of Adelaide: Digital Library
1
The University of Queensland: UQ eSpace
1
Universiti Putra Malaysia: PSAS (Perpuskataan Sultan Abuld Samad) Institutional Repository
1
University of Guelph: DSpace digital archive
1
University of Pretoria: UPSpace
1
University of St. Gallen: Research Platform Alexandria
1