Collection
Springer eBooks 2005-
59
Directory of Open Access Books
31
Springer Book Archives -2004
28
Nomos
26
Digi20
13
OAPEN
13
JSTOR Open Access Books
11
Cambridge Books Online
7
DeGruyter MPG Collection
5
Bloomsbury Education and Childhood Studies
1
Duncker & Humblot eBooks 2007-
1
Editoria Italiana Online
1
MIT Press eBook Archive
1
O'Reilly
1
Oxford University Press
1