Collection
Springer eBooks 2005-
1,345
Springer Book Archives -2004
1,068
Cambridge Books Online
155
Eighteenth Century Collections Online / ECCO
141
Directory of Open Access Books
115
DeGruyter MPG Collection
114
Elsevier eBook collection Mathematics
56
O'Reilly
32
Oxford University Press
11
Making of the Modern World
9
MIT Press eBook Archive
4
OAPEN
4
Elsevier ScienceDirect eBooks
3
JSTOR Books
2
JSTOR Open Access Books
2
ACS Symposium Series
1
Springer Lecture Notes Archiv 1964-1996
1
Wiley Online Books
1