Collection
Springer eBooks 2005-
1,018
Springer Book Archives -2004
561
Directory of Open Access Books
196
Henry Stewart Talks
78
Springer Protocols Archive 1981-2004
23
O'Reilly
8
OAPEN
3
Oxford University Press
3
Cambridge Books Online
2
MIT Press eBook Archive
2
ACS Symposium Series
1
Elsevier ScienceDirect eBooks
1