Content Provider
Directory of Open Access Journals: DOAJ Articles
221
Digital Repository of Scientific Institutes (RCIN)
151
Unknown
102
MCS University Digital Library
22
Uniwersytet Zielonogórski: Zielonogórska Biblioteka Cyfrowa
6
Cracow University of Technology: Repozytorium Politechniki Krakowskiej
5
Digital Library of University of Wroclaw
4
New York Heritage Digital Collections
3
Zenodo
3
Akademia Morska w Szczecinie: Biblioteka Cyfrowa
2
Institutional Repository of the University of Warsaw (ReIn UW)
2
Jagiellonian University: Jagiellonian Digital Library
2
LAEI VL (Lithuanian Institute of Agrarian Economics Virtual Library)
2
LSRC VL (Lithuanian Social Research Centre Virtual Library)
2
Lower Silesian Digital Library
2
Silesian University of Technology: Repolis
2
Teka Commission of Architecture, Urban Planning and Landscape Studies (Lublin University of Technology)
2
University of Technology and Life Sciences (UTP) Bydgoszcz: Digital Repository
2
Czasopisma UKSW (Uniwersytet Kardynała Stefana Wyszyńskiego w Warszawie)
1
ISS PAS Journals (Institute of Slavic Studies, Polish Academy of Sciences)
1
KUL Journals Platform – CzasKUL (John Paul II Catholic University of Lublin)
1
Krakow University: eRIKA (Repozytorium Instytucjonalne Krakowskiej Akademii im. Andrzeja Frycza Modrzewskiego)
1
Pomeranian Library of Szczecin: Digital Library
1
Repozytorium Instytucjonalne KUL (Katolicki Uniwersytet Lubelski Jana Pawła II)
1
Silesian Digital Library
1
University of Rzeszów (UR): Repository
1