Collection
Springer eBooks 2005-
1,474
Springer Book Archives -2004
1,328
Cambridge Books Online
155
Eighteenth Century Collections Online / ECCO
154
DeGruyter MPG Collection
142
Directory of Open Access Books
127
Elsevier eBook collection Mathematics
56
Lecture Notes in Mathematics
43
O'Reilly
30
Making of the Modern World
22
Lecture Notes in Computer Science
14
Oxford University Press
11
OAPEN
8
MIT Press eBook Archive
4
Elsevier ScienceDirect eBooks
3
Digi20
2
JSTOR Books
2
JSTOR Open Access Books
2
Lecture Notes in Physics
2
ACS Symposium Series
1
Springer Lecture Notes Archiv 1964-1996
1
Wiley Online Books
1