Content Provider
DataCite Metadata Store (German National Library of Science and Technology)
10,105
Directory of Open Access Journals: DOAJ Articles
222
Zenodo
10
Scientia Marina (E-Journal)
6
Pirineos (E-Journal)
3
Unknown
3
Dialnet - Portada de revistas (Universidad de La Rioja)
2
Oxford University Press (via Crossref)
2
Universidad Nacional de Colombia: Portal de Revistas UN
2
University of Alaska: ScholarWorks@UA
2
Anales del Jardín Botánico de Madrid (Real Jardín Botánico - CSIC)
1
Arctic Portal Library
1
Digital Collections of Colorado (Colorado State University)
1
Digital Commons @ CSUMB (California State University, Monterey Bay)
1
Grasas y Aceites (E-Journal)
1
Hathi Trust Digital Library
1
Magnolia press
1
Mountain Scholar (Digital Collections of Colorado and Wyoming)
1
Northern Illinois University (NIU): Huskie Commons Repository
1
Portal de Revistas de la Universidad de La Rioja
1
Portal de revistas académicas de la Universidad de Costa Rica
1
RePEc (Research Papers in Economics)
1
Repositorio Institucional UCC (Universidad Cooperativa de Colombia)
1
Repositorio Institucional Universidad Nacional de Colombia
1
Repositorio Institucional de la Universidad Santo Tomás
1
Repositorio Nacional Gobierno de Mexico
1
Revistas Universidad de León (ule)
1
Universitat Politècnica de Catalunya (UPC): Theses and Dissertations Online (TDX)
1
Universitat Politècnica de Catalunya, BarcelonaTech: UPCommons - Global access to UPC knowledge
1
Universitat Politècnica de València: PoliPapers
1
University of British Columbia: cIRcle - UBC's Information Repository
1
University of Calgary Journal Hosting
1
University of California: eScholarship
1
University of Illinois at Urbana-Champaign: IDEALS (Illinois Digital Environment for Access to Learning and Scholarship)
1
University of Lethbridge Digitized Collections
1
University of Maine, School of Law: Digital Commons
1
University of Maryland: DigitalCollections
1
University of Nebraska-Lincoln: DigitalCommons@UNL
1
University of South Florida St. Petersburg: Digital USFSP
1
University of Washington, Seattle: Digital Collections
1
Wiley Online Library
1
ZFDM Repository (Center for Sustainable Research Data Management, Hamburg University)
1