Content Provider
Unknown
3
Dialnet - Portada de revistas (Universidad de La Rioja)
2
EconStor (German National Library of Economics, ZBW)
2
SSOAR - Social Science Open Access Repository
2
Zenodo
2
Aberdeen University Research Archive (AURA)
1
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer)
1
DataCite Metadata Store (German National Library of Science and Technology)
1
Directory of Open Access Journals: DOAJ Articles
1
PANGAEA - Data Publisher for Earth & Environmental Science
1