Collection
Springer eBooks 2005-
872
Springer Book Archives -2004
259
O'Reilly
56
Lecture Notes in Computer Science
37
Cambridge Books Online
17
Directory of Open Access Books
10
DeGruyter MPG Collection
4
OAPEN
4
MIT Press eBook Archive
2
Elsevier eBook collection Mathematics
1
JSTOR Open Access Books
1
Oxford University Press
1