Collection
Springer eBooks 2005-
235
Springer Book Archives -2004
181
Eighteenth Century Collections Online / ECCO
138
O'Reilly
19
Directory of Open Access Books
15
Springer Protocols Archive 1981-2004
8
Cambridge Books Online
7
OAPEN
4
OECD Books and Papers
4
Elsevier ScienceDirect eBooks
3
DeGruyter MPG Collection
2
JSTOR Open Access Books
2
RSC eBook Collection 1968-2009
2
Edward Elgar eBook Archive
1
IEEE Conference Proceedings
1
Making of the Modern World
1
National Center for Biotechnology Information
1
Netlibrary
1
Springer Lecture Notes Archiv 1964-1996
1
wiso-net eBooks
1