Collection
Springer eBooks 2005-
880
Springer Book Archives -2004
440
Directory of Open Access Books
196
Henry Stewart Talks
76
Springer Protocols Archive 1981-2004
23
O'Reilly
7
OAPEN
6
Oxford University Press
3
Cambridge Books Online
2
MIT Press eBook Archive
2
ACS Symposium Series
1
Elsevier ScienceDirect eBooks
1