Content Provider
The Portal to Texas History (University of North Texas)
10
Zenodo
3
DataCite Metadata Store (German National Library of Science and Technology)
2
Digital.CSIC (Spanish National Research Council)
2
Oklahoma State University: Digital Collections @ OKSTATE Library
2
Repositorio Digital Conicyt RI 2.0 (Comisión Nacional de Investigación Científica y Tecnológica)
2
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
1
National Chung Hsing University Institutional Repository - NCHUIR
1
Normandie Université: HAL
1
Universidade of Minho: RepositóriUM
1
University of North Texas: UNT Digital Library
1
University of Oklahoma/Oklahoma State University: SHAREOK Repository
1