ScienceDirect
2008
ScienceDirect
2008
DOAB Directory of Open Access Books
2016
ScienceDirect
1983
OAPEN (Open Access Publishing in European Networks)
2015
DOAB Directory of Open Access Books
2015
Books at JSTOR: Open Access
2015
De Gruyter Brill Open Access eBooks
2015
Project Muse Open Access ebooks
2015
ScienceDirect
2008
ScienceDirect
2018
DOAB Directory of Open Access Books
2022
DOAB Directory of Open Access Books
2006
ScienceDirect
1994