Sudan

Sudan

Sudan, officially the Republic of the Sudan, is a country in Northeast Africa. It borders the Central African Republic to the southwest, Chad to the west, Libya to the northwest, Egypt to the north, the Red Sea to the east, Eritrea and Ethiopia to the southeast, and South Sudan to the south. Derived from Wikipedia licensed CC-BY-SA.

Open Access statistics for Sudan, covering academic research published from 2000 to 2025. Read More.


Open Access Percentage

72%


Total
Publications

35K


Total Open
Publications

25K


Total
Citations

487K


Open Access
Percentage

72%


Total
Publications

35K


Total Open
Publications

25K


Total
Citations

487K

Wikipedia

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Breakdown

36% 29% 7% 28%

Publisher Open

36%

Both

29%

Other Platform Open

7%

Closed

28%

Percentage of Open Access over time

0%10%20%30%40%50%60%70%80%90%100%
20002001200220032004200520062007200820092010201120122013201420152016201720182019202020212022202320242025

Publisher Open

Both

Other Platform Open

Closed

Volume of Open Access over time

05001k1.5k2k2.5k3k3.5k4kTotal Publications
20002001200220032004200520062007200820092010201120122013201420152016201720182019202020212022202320242025

Open

Closed

Publisher Open

42%OA Journal

OA Journal 42%

9.3K

Hybrid 36%

8.1K

No Guarantees 22%

5K

Other Platform Open

Institution 61%

7.6K

Domain 50%

6.2K

Other Internet 16%

2K

Preprint 10%

1.3K

Public 3%

313

Other Platform Locations

Name

Platform Type

Publications

PubMed Central
Domain
6.3K
doaj.org OAI-PMH Repository
Institution
6K
DOI
Other Internet
1.7K
Research Square
Preprint
771
Unknown Repository
Other Internet
505
LA Referencia
Institution
460
aecid.es OAI-PMH Repository
Institution
316
Europe PMC
Domain
247
Figshare
Public
208
Le Centre pour la Communication Scientifique Directe - HAL - Diderot
Institution
166
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Data updated 18 June 2026

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