Citation Rankings
Highly Cited Researchers
Others Highly Cited Researchers 280 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
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,478
5,356
0.467
* Total Citation Counts Rankings
Ranking Based On Selection: 2
medicine
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,662
1,379
0.296
* Total Citation Counts Rankings
Ranking Based On Selection: 3
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,350
1,129
0.480
* Total Citation Counts Rankings
Ranking Based On Selection: 4
Health Basic and clinical Sciences
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
772
713
0.924
* Total Citation Counts Rankings
Ranking Based On Selection: 5
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
629
396
0.630
* Total Citation Counts Rankings
Ranking Based On Selection: 6
Computational Statistics
Inference
Estimation
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
602
105
0.174
* Total Citation Counts Rankings
Ranking Based On Selection: 7
Primary Health care
Education
Palliative care
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
540
437
0.809
* Total Citation Counts Rankings
Ranking Based On Selection: 8
Biomedical research and Medical education (Health Professions Education)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
533
420
0.788
* Total Citation Counts Rankings
Ranking Based On Selection: 9
Coupled hydrological
biogeochemical and socio-ecological systems
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
526
413
0.785
360° Institutional Performance & Benchmarking Click Here for Live Demo
Gain data-driven strategic insights into your institution’s academic performance, global positioning, and competitive strengths through advanced analysis and benchmarking
with 20 similarly ranked institutions at City, Country, Region, and Global levels.
* Total Citation Counts Rankings
Ranking Based On Selection: 10
apartheid studies communication media cultural studies
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
473
250
0.529
* Total Citation Counts Rankings
Ranking Based On Selection: 11
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
450
332
0.738
* Total Citation Counts Rankings
Ranking Based On Selection: 12
Cement and Concrete
Geopolymers
Concrete 3D printing
Alternative binders
Recyclable cements
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
447
430
0.962
* Total Citation Counts Rankings
Ranking Based On Selection: 13
Nixtamalization
Food security
Sustainable Agriculture
Product Development
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
447
410
0.917
* Total Citation Counts Rankings
Ranking Based On Selection: 14
Groundwater
Unconventional oil and gas
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
442
266
0.602
* Total Citation Counts Rankings
Ranking Based On Selection: 15
Migration
Social Capital
Migrant Spatial Decision-Making
Migrant Place-Making
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
429
279
0.650
* Total Citation Counts Rankings
Ranking Based On Selection: 16
syntax
Bantu languages
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
415
156
0.376
* Total Citation Counts Rankings
Ranking Based On Selection: 17
town and regional planning in socially and spatially excluded communities
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
410
279
0.680
* Total Citation Counts Rankings
Ranking Based On Selection: 18
temporary rivers
ehemeral rivers
macroinvertebrate
EWR
dryland river
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
385
120
0.312
* Total Citation Counts Rankings
Ranking Based On Selection: 19
Human-computer interaction
eye tracking
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
374
241
0.644
* Total Citation Counts Rankings
Ranking Based On Selection: 20
school governance
democracy and social justice leadership in education
curriculum management
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
353
174
0.493
* Total Citation Counts Rankings
Ranking Based On Selection: 21
Mineral beneficiation
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
352
240
0.682
* Total Citation Counts Rankings
Ranking Based On Selection: 22
Interpersonal Communication
Family Communication
Transracial Adoption
LGBTQ Families
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
337
147
0.436
* Total Citation Counts Rankings
Ranking Based On Selection: 23
Foreign Policy of Emerging Powers
Studies on Conflict and Terrorism
Politics of Development and
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
321
239
0.745
* Total Citation Counts Rankings
Ranking Based On Selection: 24
Soil physics
Soil-Crop-Water relations
Soil-Crop Modelling
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
318
179
0.563
* Total Citation Counts Rankings
Ranking Based On Selection: 25
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
312
302
0.968
* Total Citation Counts Rankings
Rankings
85,551
294
4
Ranking Based On Selection: 1
M Gryzenhout
University of the Free State
Bloemfontein, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,478
5,356
0.467
* Total Citation Counts Rankings
Rankings
223,318
937
19
Ranking Based On Selection: 2
S Brown
University of the Free State
Bloemfontein, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,662
1,379
0.296
* Total Citation Counts Rankings
Rankings
398,348
1,853
43
Ranking Based On Selection: 3
Cloete Van Vuuren
University of the Free State
Bloemfontein, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,350
1,129
0.480
* Total Citation Counts Rankings
Rankings
778,669
4,065
111
Ranking Based On Selection: 4
Mamello Sekhoacha
University of the Free State
Bloemfontein, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
772
713
0.924
* Total Citation Counts Rankings
Rankings
848,184
4,502
128
Ranking Based On Selection: 5
Mariana Erasmus
University of the Free State
Bloemfontein, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
629
396
0.630
* Total Citation Counts Rankings
Rankings
862,852
4,595
129
Ranking Based On Selection: 6
J. Martin Van Zyl
University of the Free State
Bloemfontein, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
602
105
0.174
* Total Citation Counts Rankings
Rankings
899,075
4,841
132
Ranking Based On Selection: 7
Hanneke Brits
University of the Free State
Bloemfontein, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
540
437
0.809
* Total Citation Counts Rankings
Rankings
903,843
4,866
133
Ranking Based On Selection: 8
Anthonio Adefuye
University of the Free State
Bloemfontein, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
533
420
0.788
Biomedical research and Medical education (Health Professions Education)
* Total Citation Counts Rankings
Rankings
908,932
4,896
134
Ranking Based On Selection: 9
Kayode Adepoju
University of the Free State
Bloemfontein, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
526
413
0.785
Coupled hydrological
biogeochemical and socio-ecological systems
* Total Citation Counts Rankings
Rankings
952,875
5,239
146
Ranking Based On Selection: 10
Nyasha Mboti
University of the Free State
Bloemfontein, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
473
250
0.529
360° Institutional Performance & Benchmarking Click Here for Live Demo
Gain data-driven strategic insights into your institution’s academic performance, global positioning, and competitive strengths through advanced analysis and benchmarking
with 20 similarly ranked institutions at City, Country, Region, and Global levels.
* Total Citation Counts Rankings
Rankings
972,835
5,416
151
Ranking Based On Selection: 11
Deidre Van Rooyen
University of the Free State
Bloemfontein, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
450
332
0.738
* Total Citation Counts Rankings
Rankings
975,348
5,440
152
Ranking Based On Selection: 12
Abdolhossein Naghizadeh
University of the Free State
Bloemfontein, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
447
430
0.962
Cement and Concrete
Geopolymers
Concrete 3D printing
Alternative binders
Recyclable cements
* Total Citation Counts Rankings
Rankings
975,402
5,443
153
Ranking Based On Selection: 13
Alba Du Toit
University of the Free State
Bloemfontein, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
447
410
0.917
Nixtamalization
Food security
Sustainable Agriculture
Product Development
* Total Citation Counts Rankings
Rankings
980,398
5,480
155
Ranking Based On Selection: 14
Surina Esterhuyse, Surina Hohne
University of the Free State
Bloemfontein, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
442
266
0.602
* Total Citation Counts Rankings
Rankings
992,572
5,568
157
Ranking Based On Selection: 15
Khangelani Moyo
University of the Free State
Bloemfontein, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
429
279
0.650
Migration
Social Capital
Migrant Spatial Decision-Making
Migrant Place-Making
* Total Citation Counts Rankings
Rankings
1,006,367
5,682
162
Ranking Based On Selection: 16
Kristina Riedel
University of the Free State
Bloemfontein, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
415
156
0.376
* Total Citation Counts Rankings
Rankings
1,010,989
5,725
163
Ranking Based On Selection: 17
Maléne (Maria) (Mm) Campbell
University of the Free State
Bloemfontein, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
410
279
0.680
town and regional planning in socially and spatially excluded communities
* Total Citation Counts Rankings
Rankings
1,036,825
5,954
174
Ranking Based On Selection: 18
Marie Watson
University of the Free State
Bloemfontein, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
385
120
0.312
temporary rivers
ehemeral rivers
macroinvertebrate
EWR
dryland river
* Total Citation Counts Rankings
Rankings
1,047,986
6,029
177
Ranking Based On Selection: 19
Tanya Beelders
University of the Free State
Bloemfontein, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
374
241
0.644
* Total Citation Counts Rankings
Rankings
1,071,587
6,241
182
Ranking Based On Selection: 20
Pat Mafora|Patrick Mafora
University of the Free State
Bloemfontein, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
353
174
0.493
school governance
democracy and social justice leadership in education
curriculum management
* Total Citation Counts Rankings
Rankings
1,072,490
6,252
183
Ranking Based On Selection: 21
Motlalepula Nete
University of the Free State
Bloemfontein, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
352
240
0.682
* Total Citation Counts Rankings
Rankings
1,090,522
6,410
186
Ranking Based On Selection: 22
Diana Breshears
University of the Free State
Bloemfontein, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
337
147
0.436
Interpersonal Communication
Family Communication
Transracial Adoption
LGBTQ Families
* Total Citation Counts Rankings
Rankings
1,110,267
6,586
191
Ranking Based On Selection: 23
Olumuyiwa Amao.
University of the Free State
Bloemfontein, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
321
239
0.745
Foreign Policy of Emerging Powers
Studies on Conflict and Terrorism
Politics of Development and
* Total Citation Counts Rankings
Rankings
1,114,474
6,616
192
Ranking Based On Selection: 24
Johan Barnard
University of the Free State
Bloemfontein, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
318
179
0.563
* Total Citation Counts Rankings
Rankings
1,121,627
6,680
194
Ranking Based On Selection: 25
Regret Sunge
University of the Free State
Bloemfontein, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
312
302
0.968