Collection
DeGruyter MPG Collection
1
Digi20
1
Directory of Open Access Books
1,795
Eighteenth Century Collections Online / ECCO
69
Ethnographic Video Online Vol. 1
16
Making of the Modern World
52
National Center for Biotechnology Information
259
Nomos
1
OAPEN
257
Springer Book Archives -2004
18
Springer eBooks 2005-
35