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
819,958
Country Rank
44
Institution Rank : 39
![](https://cdn.adscientificindex.com/logos/11493.png)
![Barbados](/flags/bb.png)
![Casey Duane Allen|Case Allen, C Duane Allen, CD Allen](https://cdn.adscientificindex.com/pictures/7d/605574.jpg)
Geography
(Urban) Geomorphology
(Cultural) Stone Deterioration
Humanistic Geography
Landscape
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
652
354
0.543
* Total Citation Counts Rankings
World Rank
828,777
Country Rank
46
Institution Rank : 41
![](https://cdn.adscientificindex.com/logos/11493.png)
![Barbados](/flags/bb.png)
![Henri Vallès](https://cdn.adscientificindex.com/pictures/9a/605577.jpg)
Senior Lecturer
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
635
399
0.628
* Total Citation Counts Rankings
World Rank
985,670
Country Rank
58
Institution Rank : 52
![](https://cdn.adscientificindex.com/logos/11493.png)
![Barbados](/flags/bb.png)
![Bernd Sing](https://cdn.adscientificindex.com/pictures/07/605579.jpg)
Aperiodic Tilings
Discrete Geometry
Algebraic Number Theory
Dynamical Systems
Visualisation
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
377
128
0.340
* Total Citation Counts Rankings
World Rank
1,210,355
Country Rank
81
Institution Rank : 70
![](https://cdn.adscientificindex.com/logos/11493.png)
![Barbados](/flags/bb.png)
![Upindranath Singh](https://cdn.adscientificindex.com/pictures/29/4489871.jpg)
Liquid crystals and polymer
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
178
48
0.270
* Total Citation Counts Rankings
World Rank
1,479,539
Country Rank
98
Institution Rank : 84
![](https://cdn.adscientificindex.com/logos/11493.png)
![Barbados](/flags/bb.png)
![Carlos Hunte](https://cdn.adscientificindex.com/pictures/3e/4489894.jpg)
Liquid Crystal research
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
80
18
0.225
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
819,958
![Barbados](/flags/bb.png)
44
![](https://cdn.adscientificindex.com/logos/11493.png)
39
Casey Duane Allen|Case Allen, C Duane Allen, CD Allen
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
652
354
0.543
![](https://cdn.adscientificindex.com/logos/11493.png)
Geography
(Urban) Geomorphology
(Cultural) Stone Deterioration
Humanistic Geography
Landscape
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
828,777
![Barbados](/flags/bb.png)
46
![](https://cdn.adscientificindex.com/logos/11493.png)
41
Henri Vallès
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
635
399
0.628
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
985,670
![Barbados](/flags/bb.png)
58
![](https://cdn.adscientificindex.com/logos/11493.png)
52
Bernd Sing
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
377
128
0.340
![](https://cdn.adscientificindex.com/logos/11493.png)
Aperiodic Tilings
Discrete Geometry
Algebraic Number Theory
Dynamical Systems
Visualisation
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
1,210,355
![Barbados](/flags/bb.png)
81
![](https://cdn.adscientificindex.com/logos/11493.png)
70
Upindranath Singh
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
178
48
0.270
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
1,479,539
![Barbados](/flags/bb.png)
98
![](https://cdn.adscientificindex.com/logos/11493.png)
84
Carlos Hunte
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
80
18
0.225