DOAB Directory of Open Access Books
2024
DOAB Directory of Open Access Books
2025
DOAB Directory of Open Access Books
2025
ScienceDirect
1971
DOAB Directory of Open Access Books
2020
DOAB Directory of Open Access Books
2010
DOAB Directory of Open Access Books
2010
OAPEN (Open Access Publishing in European Networks)
2010
DOAB Directory of Open Access Books
2010
ScienceDirect
1970
ScienceDirect
1972