Collection
Springer eBooks 2005-
43
Directory of Open Access Books
29
Springer Book Archives -2004
29
OAPEN
21
Nomos
18
Digi20
8
MIT Press eBook Archive
8
Cambridge Books Online
4
DeGruyter MPG Collection
4
Oxford University Press
3
Duncker & Humblot eBooks 2007-
2
wiso-net eBooks
2
Editoria Italiana Online
1
JSTOR Open Access Books
1
Mohr Siebeck eBooks
1
Wiley Online Books
1