Citation Rankings
Highly Cited Researchers
Highly Cited Researchers 267 Scientists Citation Rankings - 2025
The Citation Rankings (Highly Cited Researchers) list highlight the most cited and influential researchers across a vast range of scientific fields, covering 197 main and sub-disciplines, including the Art and Humanities Citation Rankings and Social Sciences and Humanities Citation Rankings. This service, offered exclusively by AD Scientific Index, aims to provide a balanced perspective by excluding data from CERN and other statistical sources that disproportionately favor certain researchers, particularly in the social sciences and humanities. This unique approach addresses the advantages researchers with multi-author publications and CERN involvement hold over others. Furthermore, citation rankings help uncover rule violations and unethical practices within the research community. For more detailed citation analyses, explore the Scientists Last 6 Years Citation Index, Universities Total Citations Rankings 2025, and Universities Last 6 Years Citations Rankings 2025.
* Total Citation Counts Rankings
Ranking Based On Selection: 1
Physics
Astrophysics
Computational Physics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
38,940
11,714
0.301
* Total Citation Counts Rankings
Ranking Based On Selection: 2
Astrophysics
Gamma-Ray Astronomy
Multivariate Data Analysis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
21,165
10,512
0.497
* Total Citation Counts Rankings
Ranking Based On Selection: 3
clinical pharmacokinetics
microdialysis
bioequivalence
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,178
1,371
0.191
* Total Citation Counts Rankings
Ranking Based On Selection: 4
Production & Operations Management
Digital Transformation
Industry 4.0
Quality 4.0
Operational
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,005
5,606
0.934
* Total Citation Counts Rankings
Ranking Based On Selection: 5
human computer interaction
digital ethics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,029
1,723
0.428
* Total Citation Counts Rankings
Ranking Based On Selection: 6
Applied Physics
Materials Science
Nanotechnology
Multifunctional Materials
Spintronics &
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,476
951
0.274
* Total Citation Counts Rankings
Ranking Based On Selection: 7
Design
Human Computer Interaction
Indigenous Knowledge
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,033
1,772
0.584
* Total Citation Counts Rankings
Ranking Based On Selection: 8
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,733
1,165
0.426
* Total Citation Counts Rankings
Ranking Based On Selection: 9
Land management
Land administration
Well-being
Land governance
Land-use planning
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,571
2,177
0.847
* Total Citation Counts Rankings
Ranking Based On Selection: 10
ecology
zoology
ornithology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,402
884
0.368
* Total Citation Counts Rankings
Ranking Based On Selection: 11
Multimedia over IP and Wireless Networs
Mobile Computing
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,345
1,098
0.468
* Total Citation Counts Rankings
Ranking Based On Selection: 12
Geochemistry
Tectonics
Geochronology
Environmental Science
Hydrogeology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,338
1,321
0.565
* Total Citation Counts Rankings
Ranking Based On Selection: 13
Petrology and Geochemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,201
817
0.371
* Total Citation Counts Rankings
Ranking Based On Selection: 14
Food security
migration
livelihoods
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,081
1,260
0.605
* Total Citation Counts Rankings
Ranking Based On Selection: 15
Equity in Health care
Disability and Vulnerability
Disaster and risk reduction
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,986
763
0.384
* Total Citation Counts Rankings
Ranking Based On Selection: 16
inflammation
biomarkers
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,942
847
0.436
* Total Citation Counts Rankings
Ranking Based On Selection: 17
Pasture Science
Animal Nutrition
Climate Smart Animal Production.
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,879
947
0.504
* Total Citation Counts Rankings
Ranking Based On Selection: 18
Strategy
Marketing
Entrepreneurship and Research
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,857
1,559
0.840
* Total Citation Counts Rankings
Ranking Based On Selection: 19
Operations Management
Healthcare Operations Research
Metaheuristics
System Dynamics
Lean Systems
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,840
857
0.466
* Total Citation Counts Rankings
Ranking Based On Selection: 20
Medicinal Plants
Ethnobotany
Drug Discovery
Molecular Biology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,763
976
0.554
* Total Citation Counts Rankings
Ranking Based On Selection: 21
Microbiology
molecular microbiology
biotechnology
water quality
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,660
1,166
0.702
* Total Citation Counts Rankings
Ranking Based On Selection: 22
Digital journalism
social media
social movements
political participation
youth and digital
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,632
1,302
0.798
* Total Citation Counts Rankings
Ranking Based On Selection: 23
Malaria elimination
molecular biology
drug discovery and ethnobotany
pharmaceutics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,619
1,022
0.631
* Total Citation Counts Rankings
Ranking Based On Selection: 24
Fish Toxicology
Aquatic Ecotoxicology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,552
527
0.340
* Total Citation Counts Rankings
Ranking Based On Selection: 25
Strategic Human Resource Management
Organisational Behaviour
Leadership
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,528
1,353
0.885
* Total Citation Counts Rankings
Rankings
15,350
1
1
Ranking Based On Selection: 1
Riaan Steenkamp
University of Namibia
Windhoek, Namibia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
38,940
11,714
0.301
* Total Citation Counts Rankings
Rankings
38,433
2
2
Ranking Based On Selection: 2
Michael Backes
University of Namibia
Windhoek, Namibia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
21,165
10,512
0.497
Astrophysics
Gamma-Ray Astronomy
Multivariate Data Analysis
* Total Citation Counts Rankings
Rankings
145,621
3
3
Ranking Based On Selection: 3
Roger K. Verbeeck
University of Namibia
Windhoek, Namibia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,178
1,371
0.191
clinical pharmacokinetics
microdialysis
bioequivalence
* Total Citation Counts Rankings
Rankings
174,856
4
1
Ranking Based On Selection: 4
Michael Sony
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,005
5,606
0.934
Production & Operations Management
Digital Transformation
Industry 4.0
Quality 4.0
Operational
* Total Citation Counts Rankings
Rankings
256,036
5
4
Ranking Based On Selection: 5
Nic Bidwell
University of Namibia
Windhoek, Namibia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,029
1,723
0.428
* Total Citation Counts Rankings
Rankings
291,063
6
2
Ranking Based On Selection: 6
Diptiranjan Sahu
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,476
951
0.274
Applied Physics
Materials Science
Nanotechnology
Multifunctional Materials
Spintronics &
* Total Citation Counts Rankings
Rankings
326,290
7
3
Ranking Based On Selection: 7
Heike Winschiers-Theophilus
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,033
1,772
0.584
Design
Human Computer Interaction
Indigenous Knowledge
* Total Citation Counts Rankings
Rankings
355,098
8
5
Ranking Based On Selection: 8
Lawrence Kazembe
University of Namibia
Windhoek, Namibia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,733
1,165
0.426
* Total Citation Counts Rankings
Rankings
372,458
9
4
Ranking Based On Selection: 9
Uchendu Eugene Chigbu|Eugene Chigbu, Uchendu Chigbu, Eugene Uchendu Chugbu
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,571
2,177
0.847
Land management
Land administration
Well-being
Land governance
Land-use planning
* Total Citation Counts Rankings
Rankings
392,504
10
6
Ranking Based On Selection: 10
Grzegorz Kopij
University of Namibia
Windhoek, Namibia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,402
884
0.368
* Total Citation Counts Rankings
Rankings
399,598
11
7
Ranking Based On Selection: 11
Dharm Singh
University of Namibia
Windhoek, Namibia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,345
1,098
0.468
* Total Citation Counts Rankings
Rankings
400,444
12
5
Ranking Based On Selection: 12
Ben Mapani
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,338
1,321
0.565
Geochemistry
Tectonics
Geochronology
Environmental Science
Hydrogeology
* Total Citation Counts Rankings
Rankings
418,718
13
8
Ranking Based On Selection: 13
Mengist Teklay
University of Namibia
Windhoek, Namibia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,201
817
0.371
* Total Citation Counts Rankings
Rankings
436,243
14
9
Ranking Based On Selection: 14
Godfrey Tawodzera
University of Namibia
Windhoek, Namibia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,081
1,260
0.605
* Total Citation Counts Rankings
Rankings
451,071
15
10
Ranking Based On Selection: 15
Gert Van Rooy
University of Namibia
Windhoek, Namibia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,986
763
0.384
Equity in Health care
Disability and Vulnerability
Disaster and risk reduction
* Total Citation Counts Rankings
Rankings
458,303
16
11
Ranking Based On Selection: 16
Quaye I. K
University of Namibia
Windhoek, Namibia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,942
847
0.436
* Total Citation Counts Rankings
Rankings
468,865
17
12
Ranking Based On Selection: 17
Johnfisher Mupangwa
University of Namibia
Windhoek, Namibia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,879
947
0.504
Pasture Science
Animal Nutrition
Climate Smart Animal Production.
* Total Citation Counts Rankings
Rankings
472,612
18
13
Ranking Based On Selection: 18
Charles Makanyeza
University of Namibia
Windhoek, Namibia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,857
1,559
0.840
Strategy
Marketing
Entrepreneurship and Research
* Total Citation Counts Rankings
Rankings
475,667
19
6
Ranking Based On Selection: 19
Michael Mutingi
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,840
857
0.466
Operations Management
Healthcare Operations Research
Metaheuristics
System Dynamics
Lean Systems
* Total Citation Counts Rankings
Rankings
489,940
20
14
Ranking Based On Selection: 20
Kazhila C. Chinsembu|Kazhila CC
University of Namibia
Windhoek, Namibia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,763
976
0.554
Medicinal Plants
Ethnobotany
Drug Discovery
Molecular Biology
* Total Citation Counts Rankings
Rankings
510,068
21
15
Ranking Based On Selection: 21
Timothy Sibanda
University of Namibia
Windhoek, Namibia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,660
1,166
0.702
Microbiology
molecular microbiology
biotechnology
water quality
* Total Citation Counts Rankings
Rankings
515,924
22
7
Ranking Based On Selection: 22
Admire Mare
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,632
1,302
0.798
Digital journalism
social media
social movements
political participation
youth and digital
* Total Citation Counts Rankings
Rankings
518,716
23
16
Ranking Based On Selection: 23
Davis Mumbengegwi
University of Namibia
Windhoek, Namibia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,619
1,022
0.631
Malaria elimination
molecular biology
drug discovery and ethnobotany
pharmaceutics
* Total Citation Counts Rankings
Rankings
533,021
24
8
Ranking Based On Selection: 24
Edosa Omoregie
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,552
527
0.340
Fish Toxicology
Aquatic Ecotoxicology
* Total Citation Counts Rankings
Rankings
538,095
25
9
Ranking Based On Selection: 25
Sulaiman Olusegun Atiku|Olusegun Atiku, Sulaiman Atiku
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,528
1,353
0.885
Strategic Human Resource Management
Organisational Behaviour
Leadership