Content Provider
Cambridge University Press
4
Copernicus Publications: E-Journals
2
Oxford University Press (via Crossref)
2
Directory of Open Access Journals: DOAJ Articles
1
LaCRIS - University of Lapland Current Research System
1
Niedersächsisches Online-Archiv NOA
1
Polar Research
1
RePEc (Research Papers in Economics)
1
Research at Universidade Católica Portuguesa (Ciência-UCP)
1
Springer Nature (via Crossref)
1
The London School of Economics and Political Science: LSE Research Online
1
Universidade Católica Portuguesa: Veritati - Repositório Institucional
1
University of Bristol: Bristol Research
1
University of Chicago Press (via Crossref)
1
Unknown
1