Nikola Vaptsarov Naval Academy

Nikola Vaptsarov Naval Academy

Nikola Vaptsarov Naval Academy is the oldest technical educational institution in the Republic of Bulgaria. Its history, past and present achievements establish the institution as the most prestigious centre for training maritime specialists in the country. Derived from Wikipedia licensed CC-BY-SA.

Open Access statistics for Nikola Vaptsarov Naval Academy, Bulgaria, covering academic research published from 2000 to 2025. Read More.


Open Access Percentage

52%


Total
Publications

563


Total Open
Publications

290


Total
Citations

2.5K


Open Access
Percentage

52%


Total
Publications

563


Total Open
Publications

290


Total
Citations

2.5K

Wikipedia

Website

download

Breakdown

24% 20% 6% 50%

Publisher Open

24%

Both

20%

Other Platform Open

6%

Closed

50%

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

0102030405060708090Total Publications
20002001200220032004200520062007200820092010201120122013201420152016201720182019202020212022202320242025

Open

Closed

Publisher Open

19%OA Journal

OA Journal 19%

47

Hybrid 38%

91

No Guarantees 43%

103

Other Platform Open

Institution 57%

82

Other Internet 32%

46

Public 31%

44

Domain 17%

25

Preprint 1%

1

Other Platform Locations

Name

Platform Type

Publications

doaj.org OAI-PMH Repository
Institution
41
Figshare
Public
38
Unknown Repository
Other Internet
32
PubMed Central
Domain
25
Rezekne Academy of Technologies
Institution
18
DOI
Other Internet
18
Open Research Library
Public
6
University of Tasmania
Institution
4
intechopen.com OAI-PMH Repository
Institution
4
Intech (Slovakia)
Institution
4
1 / 3

Data updated 12 August 2026

Share

Share

Share