Collection
Springer eBooks 2005-
109
Cambridge Books Online
63
Directory of Open Access Books
57
Oxford University Press
30
Brill Nijhoff E-Books Collections 2009-2014
20
Brill Nijhoff E-Books Collections 2006-2008
7
JSTOR Open Access Books
7
Duncker & Humblot eBooks 2007-
6
OAPEN
5
Oxford Handbook Online
4
O'Reilly
2
World Bank E-Library Archive
2
International Monetary Fund
1
National Center for Biotechnology Information
1
Nomos
1