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
Parasitologie
SIDA
Tuberculose
environnement
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,371
1,177
0.349
* Total Citation Counts Rankings
Ranking Based On Selection: 2
Biologie et Physiologie Humaine et Animale
ethnopharmacologie
ethnomedecine
phytotherapie et phytoaliment
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
300
290
0.967
* Total Citation Counts Rankings
Ranking Based On Selection: 3
écologie
malacologie
biodiversité
environnement
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
126
89
0.706
* Total Citation Counts Rankings
Ranking Based On Selection: 4
Systematic
Ethnobotany
Plant interactions
Parasitic plants
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
97
62
0.639
Leopold Gustave Lehman
Université de Douala
Douala, Cameroon
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,371
1,177
0.349
Parasitologie
SIDA
Tuberculose
environnement
Calvin Bogning Zangueu
Université de Douala
Douala, Cameroon
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
300
290
0.967
Biologie et Physiologie Humaine et Animale
ethnopharmacologie
ethnomedecine
phytotherapie et phytoaliment
KottèMapoko Ernest Flavien
Université de Douala
Douala, Cameroon
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
126
89
0.706
écologie
malacologie
biodiversité
environnement
Jacques Bruno Ngotta Biyon
Université de Douala
Douala, Cameroon
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
97
62
0.639
Systematic
Ethnobotany
Plant interactions
Parasitic plants