Content Provider
Directory of Open Access Journals: DOAJ Articles
224
Xiamen University Institutional Repository
157
UNESDOC - UNESCO Digital Library
25
University of Toronto: Research Repository T-Space
20
Chinese Culture University: Institutional Repository (CCUR)
18
IMHE OpenIR (Institute of Mountain Hazards and Environment, Chinese Academy of Sciences)
8
Macquarie University Research Portal
5
National Taiwan University Institutional Repository (NTUR)
5
DataCite Metadata Store (German National Library of Science and Technology)
4
National Chung Hsing University Institutional Repository - NCHUIR
4
University of Tromsø: Septentrio Academic Publishing
3
Aalborg University's Research Portal
2
National Chengchi University Institutional Repository (NCCUIR)
2
Umeå University: Publications (DiVA)
2
University of Hong Kong: HKU Scholars Hub
2
ASIA University, Taiwan: Instiutional Repository (ASIAIR)
1
Chia Nan University of Pharmacy & Science Institutional Repository (CHNAIR)
1
Coventry University: Curve/open
1
Institute of Earth Environment: IEECAS OpenIR (Chinese Academy of Sciences)
1
Lund University Publications (LUP)
1
RE.PUBLIC@POLIMI - Research Publications at Politecnico di Milano
1
South Ural State University: Electronic Archive
1
The Hong Kong University of Science and Technology: HKUST Institutional Repository
1
The University of Queensland: UQ eSpace
1
University of Copenhagen: Research
1
Università del Salento: CINECA IRIS
1
Vrije Universiteit Amsterdam (VU): Research Portal
1
Xi'an Institute of Optics and Precision Mechanics: OPT OpenIR (Chinese Academy of Sciences, CAS)
1