Collection
Springer eBooks 2005-
1,646
Springer Book Archives -2004
867
Lecture Notes in Computer Science
248
Elsevier eBook collection Mathematics
51
O'Reilly
34
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