Citation Rankings (Highly Cited Researchers) 2024 and list of influential and most cited researchers in Agriculture and Forestry, Art, Design and Architecture, Business and Management, Economics and Econometrics, Education, Engineering and Technology, History, Philosophy, Theology, Law, Medicine and Health Sciences, Natural Sciences and Social Sciences and their 256 sub-branches is a unique service offered only by “AD Scientific Index”. You can see the most cited and influential researchers in the country and region. See also for more specific citation analyses: "last 6 years citation index" Universities Rankings 2024 (Sort by: Total Citations) and Universities Rankings 2024 (Sort by : Last 6 Years Citations)
* Total Citation Counts Rankings
World Rank
979,126
Country Rank
1,057
Institution Rank : 40
![](https://cdn.adscientificindex.com/logos/5625.jpg)
![Bulgaria](/flags/bg.png)
![Valeri Velev](/pictures/4f/4818473.jpg)
Infectious Diseases
Parasitology
Pediatrics
Microbiology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
385
337
0.875
* Total Citation Counts Rankings
World Ranking
979,126
Country Ranking
1,057
Institution Ranking
40
Valeri Velev
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
385
337
0.875
![](https://cdn.adscientificindex.com/logos/5625.jpg)
Infectious Diseases
Parasitology
Pediatrics
Microbiology