Content Provider
University of North Texas: UNT Digital Library
62
University of Alaska: ScholarWorks@UA
22
Nanjing Institute of Geology and Palaeontology: NIGPAS OpenIR (Chinese Academy of Sciences)
4
Ohio State University (OSU): Knowledge Bank
4
Woods Hole Scientific Community: WHOAS (Woods Hole Open Access Server)
2
EconStor (German National Library of Economics, ZBW)
1
National Research Council Canada: NRC Publications Archive
1
Texas A&M University Galveston Campus: DSpace Repository
1
norden (Nordic Council of Ministers): Publications (DiVA)
1