Content Provider
WikiBooks - Open-content textbooks
33
University of Szeged: SZTE Repository of Papers and Books
7
University of Debrecen Electronic Archive (DEA)
6
Hungarian Electronic Library (MEK)
3
MTAK: REAL (Library and Information Centre of the Hungarian Academy of Sciences
1
MTAK: REAL-EOD (Library and Information Centre of the Hungarian Academy of Sciences
1