Collection
Springer eBooks 2005-
294
Springer Book Archives -2004
188
MIT Press eBook Archive
45
Directory of Open Access Books
31
Oxford University Press
21
National Center for Biotechnology Information
19
Henry Stewart Talks
15
OAPEN
7
Cambridge Books Online
6
JSTOR Open Access Books
5
Editoria Italiana Online
3
DeGruyter MPG Collection
1
Digi20
1
Netlibrary
1
O'Reilly
1
Oxford Handbook Online
1