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
387,410
Country Rank
1,324
Institution Rank : 67
![](https://cdn.adscientificindex.com/logos/9771.png)
![Portugal](/flags/pt.png)
![Maria Eugénia Ferrão](https://cdn.adscientificindex.com/pictures/42/4368521.jpg)
Statistics
Quantitative methods
Multilevel models
Measurement error
misclassification
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,314
883
0.382
* Total Citation Counts Rankings
World Rank
419,646
Country Rank
1,455
Institution Rank : 75
![](https://cdn.adscientificindex.com/logos/9771.png)
![Portugal](/flags/pt.png)
![Célia Nunes](https://cdn.adscientificindex.com/pictures/29/4368562.jpg)
Statistical Inference
Linear Mixed Models
Applied Mathematics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,076
1,753
0.844
* Total Citation Counts Rankings
World Rank
462,446
Country Rank
1,614
Institution Rank : 79
![](https://cdn.adscientificindex.com/logos/9771.png)
![Portugal](/flags/pt.png)
![José Manuel Velhinho](/user/assets/images/profile/no-profile-photo.png)
Quantum Gravity
Quantum Cosmology
Quantum Field Theory
Mathematical Physics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,814
996
0.549
* Total Citation Counts Rankings
World Rank
525,732
Country Rank
1,897
Institution Rank : 92
![](https://cdn.adscientificindex.com/logos/9771.png)
![Portugal](/flags/pt.png)
![Luísa Pereira](https://cdn.adscientificindex.com/pictures/a1/908667.jpg)
Estatística e Processos Estocásticos
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,499
1,009
0.673
* Total Citation Counts Rankings
World Rank
828,937
Country Rank
3,254
Institution Rank : 148
![](https://cdn.adscientificindex.com/logos/9771.png)
![Portugal](/flags/pt.png)
![Mário Bessa](https://cdn.adscientificindex.com/pictures/a7/4368586.jpg)
Dynamical Systems
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
634
224
0.353
* Total Citation Counts Rankings
World Rank
867,805
Country Rank
3,482
Institution Rank : 155
![](https://cdn.adscientificindex.com/logos/9771.png)
![Portugal](/flags/pt.png)
![César M. Silva](https://cdn.adscientificindex.com/pictures/6a/4368618.jpg)
Equações diferenciais ordinárias
sistemas dinâmicos
epidemiologia matemática
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
562
337
0.600
* Total Citation Counts Rankings
World Rank
1,037,503
Country Rank
4,536
Institution Rank : 184
![](https://cdn.adscientificindex.com/logos/9771.png)
![Portugal](/flags/pt.png)
![Dário Ferreira](/user/assets/images/profile/no-profile-photo.png)
Linear mixed models
non-orthogonal models
F tests
analysis of variance
asymptotical convergence.
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
312
163
0.522
* Total Citation Counts Rankings
World Rank
1,120,030
Country Rank
4,800
Institution Rank : 192
![](https://cdn.adscientificindex.com/logos/9771.png)
![Portugal](/flags/pt.png)
![Alberto M Simões](/pictures/fe/5091309.jpg)
Mathematics
Operator Theory
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
236
164
0.695
* Total Citation Counts Rankings
World Ranking
387,410
Country Ranking
1,324
Institution Ranking
67
Maria Eugénia Ferrão
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,314
883
0.382
![](https://cdn.adscientificindex.com/logos/9771.png)
Statistics
Quantitative methods
Multilevel models
Measurement error
misclassification
* Total Citation Counts Rankings
World Ranking
419,646
Country Ranking
1,455
Institution Ranking
75
Célia Nunes
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,076
1,753
0.844
![](https://cdn.adscientificindex.com/logos/9771.png)
Statistical Inference
Linear Mixed Models
Applied Mathematics
* Total Citation Counts Rankings
World Ranking
462,446
Country Ranking
1,614
Institution Ranking
79
José Manuel Velhinho
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,814
996
0.549
![](https://cdn.adscientificindex.com/logos/9771.png)
Quantum Gravity
Quantum Cosmology
Quantum Field Theory
Mathematical Physics
* Total Citation Counts Rankings
World Ranking
525,732
Country Ranking
1,897
Institution Ranking
92
Luísa Pereira
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,499
1,009
0.673
![](https://cdn.adscientificindex.com/logos/9771.png)
Estatística e Processos Estocásticos
* Total Citation Counts Rankings
World Ranking
828,937
Country Ranking
3,254
Institution Ranking
148
Mário Bessa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
634
224
0.353
* Total Citation Counts Rankings
World Ranking
867,805
Country Ranking
3,482
Institution Ranking
155
César M. Silva
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
562
337
0.600
![](https://cdn.adscientificindex.com/logos/9771.png)
Equações diferenciais ordinárias
sistemas dinâmicos
epidemiologia matemática
* Total Citation Counts Rankings
World Ranking
1,037,503
Country Ranking
4,536
Institution Ranking
184
Dário Ferreira
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
312
163
0.522
![](https://cdn.adscientificindex.com/logos/9771.png)
Linear mixed models
non-orthogonal models
F tests
analysis of variance
asymptotical convergence.
* Total Citation Counts Rankings
World Ranking
1,120,030
Country Ranking
4,800
Institution Ranking
192
Alberto M Simões
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
236
164
0.695