Collection
Springer eBooks 2005-
1,675
Springer Book Archives -2004
873
Lecture Notes in Computer Science
248
Elsevier eBook collection Mathematics
51
O'Reilly
39
Cambridge Books Online
16
DeGruyter MPG Collection
13
Directory of Open Access Books
7
MIT Press eBook Archive
3
Wiley Online Books
3
Elsevier ScienceDirect eBooks
2
Oxford University Press
1