Content Provider
Sapienza Università di Roma: CINECA IRIS
5
Brepols Publishers (via Crossref)
4
Springer Nature
4
Université de Genève: Archive ouverte UNIGE
4
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
3
OpenEdition
3
Oxford University Press (via Crossref)
3
CQUniversity: acquire
2
Cambridge University Press
2
DataCite Metadata Store (German National Library of Science and Technology)
2
Università degli Studi di Udine: CINECA IRIS
2
Aix-Marseille Université: HAL
1
Archivo Digital UPM (Universidad Politécnica de Madrid)
1
Central Queensland University: aCQUIRe
1
Digital.CSIC (Spanish National Research Council)
1
Lund University Publications (LUP)
1
Oxford University Press
1
Portail HAL UHA (Université de Haute-Alsace)
1
The University of Milan: Archivio Istituzionale della Ricerca (AIR)
1
UFZ - Publication Index (Helmholtz-Centre for Environmental Research)
1
Université Grenoble Alpes: HAL
1
Université Savoie Mont Blanc: HAL
1
Zenodo
1