Collection
Springer eBooks 2005-
700
Springer Book Archives -2004
567
Cambridge Books Online
69
Elsevier eBook collection Mathematics
35
DeGruyter MPG Collection
23
Springer Lecture Notes Archiv 1964-1996
15
Lecture Notes in Mathematics
12
O'Reilly
10
Directory of Open Access Books
9
Elsevier ScienceDirect eBooks
4
Oxford University Press
3
Lecture Notes in Physics
2
OAPEN
2
Wiley Online Books
2
JSTOR Open Access Books
1