Content Provider
HighWire Press (Stanford University)
4
SAGE Publications (via Crossref)
3
Ovid (via Crossref)
2
PubMed Central (PMC)
2
Wiley Online Library
2
Dialnet - Portada de revistas (Universidad de La Rioja)
1
Federation of Finnish Learned Societies: Scientific Journals Online
1
LAEI VL (Lithuanian Institute of Agrarian Economics Virtual Library)
1
LSRC VL (Lithuanian Social Research Centre Virtual Library)
1
Oxford University Press (via Crossref)
1
ScienceDirect (Elsevier - via Crossref)
1