Open Access statistics for Technical University of Sofia, Bulgaria, covering academic research published from 2000 to 2025. Read More.
Open Access Percentage
33%
Total
Publications
9.8K
Total Open
Publications
3.2K
Total
Citations
51K
Open Access
Percentage
33%
Total
Publications
9.8K
Total Open
Publications
3.2K
Total
Citations
51K
Breakdown
Publisher Open
18%
Both
12%
Other Platform Open
2%
Closed
68%
Percentage of Open Access over time
Publisher Open
Both
Other Platform Open
Closed
Volume of Open Access over time
Open
Closed
Publisher Open
OA Journal 32%
921
Hybrid 36%
1K
No Guarantees 32%
896
Other Platform Open
Institution 75%
1.1K
Other Internet 32%
463
Domain 9%
138
Preprint 7%
109
Public 3%
50
Other Platform Locations
Name | Platform Type | Publications |
|---|---|---|
doaj.org OAI-PMH Repository | Institution | 823 |
DOI | Other Internet | 348 |
Unknown Repository | Other Internet | 149 |
PubMed Central | Domain | 139 |
Rezekne Academy of Technologies | Institution | 80 |
arXiv | Preprint | 67 |
Chiba Institute of Technology | Institution | 62 |
Le Centre pour la Communication Scientifique Directe - HAL - Diderot | Institution | 43 |
Preprints | Preprint | 33 |
Zenodo | Public | 30 |
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