Collection
Springer Book Archives -2004
588
Springer eBooks 2005-
452
Springer Lecture Notes Archiv 1964-1996
345
O'Reilly
299
DeGruyter MPG Collection
136
Lecture Notes in Mathematics
93
Elsevier eBook collection Mathematics
86
Eighteenth Century Collections Online / ECCO
75
Cambridge Books Online
21
Wiley Online Books
6
Oxford University Press
4
Edward Elgar eBooks Collection Business & Economics
2
Elsevier ScienceDirect eBooks
2
Digi20
1
Directory of Open Access Books
1
JSTOR Open Access Books
1