Content Provider
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
5
Université de Nantes: HAL-UNIV-NANTES
5
Niedersächsisches Online-Archiv NOA
2
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center)
1
Wageningen UR (University & Research Centre): Digital Library
1