Collection
Springer eBooks 2005-
840
Directory of Open Access Books
345
Springer Book Archives -2004
151
Nomos
136
National Center for Biotechnology Information
102
OAPEN
65
Oxford University Press
56
JSTOR Open Access Books
50
O'Reilly
23
Cambridge Books Online
12
DeGruyter MPG Collection
10
World Bank E-Library Archive
10
Oxford Handbook Online
6
Digi20
3
Emerald Business, Management and Economics eBook Collection Archive
3
MIT Press eBook Archive
2
Bloomsbury Education and Childhood Studies
1
Editoria Italiana Online
1
Edward Elgar eBook Archive
1
Mohr Siebeck eBooks
1