Content Provider
Universidad de Salamanca: Gredos (GestiĆ³n del Repositorio Documental de la Universidad de Salamanca)
43
DataCite Metadata Store (German National Library of Science and Technology)
8
Swedish environmental protection agency: Publications (DiVA)
2
University of Minnesota Digital Conservancy
2
Wageningen UR (University & Research Centre): Digital Library
2
Digital.CSIC (Spanish National Research Council)
1
Kagoshima University Repository
1
Kindai University Academic Resource Repository
1
Minerva - Repositorio institucional da Universidade de Santiago de Compostela (USC)
1
National Repository of Grey Literature (NUSL): Digital Repository
1
State Library of Iowa: Iowa Publications Online (IOP)
1
Tokyo Metropolitan University Institutional Repository Miyako-Dori
1