Collection
Springer eBooks 2005-
120
Springer Book Archives -2004
87
Directory of Open Access Books
62
Elsevier ScienceDirect eBooks
6
Lecture Notes in Physics
5
O'Reilly
5
Wiley Online Books
5
Oxford University Press
3
ACS Symposium Series
2
Cambridge Books Online
2
ACS Advances in Chemistry
1
DeGruyter MPG Collection
1
MIT Press eBook Archive
1
OAPEN
1