Collection
IEEE Standards
261
OECD Books and Papers
243
Directory of Open Access Books
220
IEEE Conference Proceedings
220
National Center for Biotechnology Information
204
OAPEN
42
SPIE Conference Proceedings
18
Edward Elgar eBooks Collection Business & Economics
7
Springer eBooks 2005-
5
O'Reilly
3
Edward Elgar eBook Archive
1
Eighteenth Century Collections Online / ECCO
1
Making of the Modern World
1
Oxford Handbook Online
1