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
238,889
Country Rank
9,573
Institution Rank : 1
![](https://cdn.adscientificindex.com/logos/3450.png)
![Germany](/flags/de.png)
![Stefan Stoll](/user/assets/images/profile/no-profile-photo.png)
aquatic ecology
river restoration
aquatic invasions
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,134
2,975
0.720
* Total Citation Counts Rankings
World Rank
263,802
Country Rank
10,425
Institution Rank : 2
![](https://cdn.adscientificindex.com/logos/3450.png)
![Germany](/flags/de.png)
![Eckard Helmers](https://cdn.adscientificindex.com/pictures/b2/1759752.jpg)
Environmental impact assessment
electric vehicles
sustainable mobility
life cycle assessment
sustainable universities
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,704
1,620
0.437
* Total Citation Counts Rankings
World Rank
470,722
Country Rank
17,072
Institution Rank : 3
![](https://cdn.adscientificindex.com/logos/3450.png)
![Germany](/flags/de.png)
![Stefan Naumann](https://cdn.adscientificindex.com/pictures/10/1759755.jpg)
Green IT
Green Software Engineering
Green by IT
Nachhaltige Informationsgesellschaft
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,768
862
0.488
* Total Citation Counts Rankings
World Rank
479,415
Country Rank
17,339
Institution Rank : 4
![](https://cdn.adscientificindex.com/logos/3450.png)
![Germany](/flags/de.png)
![Stephan Didas](https://cdn.adscientificindex.com/pictures/56/1759754.jpg)
Bildverarbeitung
Computer Vision
Image Processing
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,721
353
0.205
* Total Citation Counts Rankings
World Rank
550,802
Country Rank
19,495
Institution Rank : 5
![](https://cdn.adscientificindex.com/logos/3450.png)
![Germany](/flags/de.png)
![Eva Kern](https://cdn.adscientificindex.com/pictures/57/1759756.jpg)
Green Software Engineering
Green Software
Sustainability
Environmental Informatics
ICT for
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,392
793
0.570
* Total Citation Counts Rankings
World Rank
797,491
Country Rank
26,800
Institution Rank : 6
![](https://cdn.adscientificindex.com/logos/3450.png)
![Germany](/flags/de.png)
![Michael Bottlinger](https://cdn.adscientificindex.com/pictures/9a/1759758.jpg)
Partikelmesstechnik
Hydrothermale Karbonisierung
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
695
438
0.630
* Total Citation Counts Rankings
World Rank
819,017
Country Rank
27,433
Institution Rank : 7
![](https://cdn.adscientificindex.com/logos/3450.png)
![Germany](/flags/de.png)
![Norbert Kuhn](/user/assets/images/profile/no-profile-photo.png)
KI
HCI
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
653
123
0.188
* Total Citation Counts Rankings
World Rank
955,205
Country Rank
32,020
Institution Rank : 8
![](https://cdn.adscientificindex.com/logos/3450.png)
![Germany](/flags/de.png)
![Achim Guldner](/pictures/e0/4537910.jpg)
green software engineering
sustainable software systems
energy efficiency
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
419
329
0.785
* Total Citation Counts Rankings
World Rank
1,051,412
Country Rank
35,570
Institution Rank : 9
![](https://cdn.adscientificindex.com/logos/3450.png)
![Germany](/flags/de.png)
![Stefan Diemer](/pictures/f3/4536449.jpg)
English linguistics
Discourse analysis
English as a Lingua Franca
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
297
172
0.579
* Total Citation Counts Rankings
World Rank
1,063,458
Country Rank
35,979
Institution Rank : 10
![](https://cdn.adscientificindex.com/logos/3450.png)
![Germany](/flags/de.png)
![Michael Wahl](/user/assets/images/profile/no-profile-photo.png)
Entwicklung und Konstruktion
Bioreaktor
additive Fertigung
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
285
154
0.540
* Total Citation Counts Rankings
World Rank
1,133,541
Country Rank
38,315
Institution Rank : 11
![](https://cdn.adscientificindex.com/logos/3450.png)
![Germany](/flags/de.png)
![Henrik te Heesen](/pictures/c6/4537912.jpg)
Photovoltaics
Renewable Energy
Simulation
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
226
145
0.642
* Total Citation Counts Rankings
World Rank
1,165,585
Country Rank
39,310
Institution Rank : 12
![](https://cdn.adscientificindex.com/logos/3450.png)
![Germany](/flags/de.png)
![Oliver Braun](/user/assets/images/profile/no-profile-photo.png)
Scheduling
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
204
71
0.348
* Total Citation Counts Rankings
World Rank
1,214,657
Country Rank
40,553
Institution Rank : 13
![](https://cdn.adscientificindex.com/logos/3450.png)
![Germany](/flags/de.png)
![Lejla Begic Fazlic](/user/assets/images/profile/no-profile-photo.png)
AI
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
175
156
0.891
* Total Citation Counts Rankings
World Rank
1,281,199
Country Rank
42,142
Institution Rank : 14
![](https://cdn.adscientificindex.com/logos/3450.png)
![Germany](/flags/de.png)
![Klaus Helling](/user/assets/images/profile/no-profile-photo.png)
Nachhaltigkeit
Sustainability
Umweltmanagement
Klimaschutz
Green Universities
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
144
25
0.174
* Total Citation Counts Rankings
World Rank
1,287,477
Country Rank
42,285
Institution Rank : 15
![](https://cdn.adscientificindex.com/logos/3450.png)
![Germany](/flags/de.png)
![Marie-Louise Brunner](/pictures/f8/4782116.jpg)
Sustainability Communication
Intercultural Communication
DA (corpus-based & multimodal)
Identity
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
141
102
0.723
* Total Citation Counts Rankings
World Rank
1,394,052
Country Rank
44,705
Institution Rank : 16
![](https://cdn.adscientificindex.com/logos/3450.png)
![Germany](/flags/de.png)
![Milena Valeva](/user/assets/images/profile/no-profile-photo.png)
non-profit
Social Innovation
CSR
Business & Society
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
103
56
0.544
* Total Citation Counts Rankings
World Rank
1,699,608
Country Rank
51,083
Institution Rank : 17
![](https://cdn.adscientificindex.com/logos/3450.png)
![Germany](/flags/de.png)
![Heiko Schmidt](/user/assets/images/profile/no-profile-photo.png)
Ecology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
39
39
1.000
* Total Citation Counts Rankings
World Rank
1,986,229
Country Rank
56,125
Institution Rank : 18
![](https://cdn.adscientificindex.com/logos/3450.png)
![Germany](/flags/de.png)
![Lucas Mignien](/pictures/0e/4782120.jpg)
Freshwater biology
Biostatistics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11
11
1.000
* Total Citation Counts Rankings
World Ranking
238,889
Country Ranking
9,573
Institution Ranking
1
Stefan Stoll
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,134
2,975
0.720
![](https://cdn.adscientificindex.com/logos/3450.png)
aquatic ecology
river restoration
aquatic invasions
* Total Citation Counts Rankings
World Ranking
263,802
Country Ranking
10,425
Institution Ranking
2
Eckard Helmers
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,704
1,620
0.437
![](https://cdn.adscientificindex.com/logos/3450.png)
Environmental impact assessment
electric vehicles
sustainable mobility
life cycle assessment
sustainable universities
* Total Citation Counts Rankings
World Ranking
470,722
Country Ranking
17,072
Institution Ranking
3
Stefan Naumann
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,768
862
0.488
![](https://cdn.adscientificindex.com/logos/3450.png)
Green IT
Green Software Engineering
Green by IT
Nachhaltige Informationsgesellschaft
* Total Citation Counts Rankings
World Ranking
479,415
Country Ranking
17,339
Institution Ranking
4
Stephan Didas
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,721
353
0.205
![](https://cdn.adscientificindex.com/logos/3450.png)
Bildverarbeitung
Computer Vision
Image Processing
* Total Citation Counts Rankings
World Ranking
550,802
Country Ranking
19,495
Institution Ranking
5
Eva Kern
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,392
793
0.570
![](https://cdn.adscientificindex.com/logos/3450.png)
Green Software Engineering
Green Software
Sustainability
Environmental Informatics
ICT for
* Total Citation Counts Rankings
World Ranking
797,491
Country Ranking
26,800
Institution Ranking
6
Michael Bottlinger
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
695
438
0.630
![](https://cdn.adscientificindex.com/logos/3450.png)
Partikelmesstechnik
Hydrothermale Karbonisierung
* Total Citation Counts Rankings
World Ranking
819,017
Country Ranking
27,433
Institution Ranking
7
Norbert Kuhn
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
653
123
0.188
* Total Citation Counts Rankings
World Ranking
955,205
Country Ranking
32,020
Institution Ranking
8
Achim Guldner
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
419
329
0.785
![](https://cdn.adscientificindex.com/logos/3450.png)
green software engineering
sustainable software systems
energy efficiency
* Total Citation Counts Rankings
World Ranking
1,051,412
Country Ranking
35,570
Institution Ranking
9
Stefan Diemer
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
297
172
0.579
![](https://cdn.adscientificindex.com/logos/3450.png)
English linguistics
Discourse analysis
English as a Lingua Franca
* Total Citation Counts Rankings
World Ranking
1,063,458
Country Ranking
35,979
Institution Ranking
10
Michael Wahl
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
285
154
0.540
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* Total Citation Counts Rankings
World Ranking
1,133,541
Country Ranking
38,315
Institution Ranking
11
Henrik te Heesen
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
226
145
0.642
![](https://cdn.adscientificindex.com/logos/3450.png)
Photovoltaics
Renewable Energy
Simulation
* Total Citation Counts Rankings
World Ranking
1,165,585
Country Ranking
39,310
Institution Ranking
12
Oliver Braun
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
204
71
0.348
* Total Citation Counts Rankings
World Ranking
1,214,657
Country Ranking
40,553
Institution Ranking
13
Lejla Begic Fazlic
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
175
156
0.891
* Total Citation Counts Rankings
World Ranking
1,281,199
Country Ranking
42,142
Institution Ranking
14
Klaus Helling
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
144
25
0.174
![](https://cdn.adscientificindex.com/logos/3450.png)
Nachhaltigkeit
Sustainability
Umweltmanagement
Klimaschutz
Green Universities
* Total Citation Counts Rankings
World Ranking
1,287,477
Country Ranking
42,285
Institution Ranking
15
Marie-Louise Brunner
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
141
102
0.723
![](https://cdn.adscientificindex.com/logos/3450.png)
Sustainability Communication
Intercultural Communication
DA (corpus-based & multimodal)
Identity
* Total Citation Counts Rankings
World Ranking
1,394,052
Country Ranking
44,705
Institution Ranking
16
Milena Valeva
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
103
56
0.544
* Total Citation Counts Rankings
World Ranking
1,699,608
Country Ranking
51,083
Institution Ranking
17
Heiko Schmidt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
39
39
1.000
* Total Citation Counts Rankings
World Ranking
1,986,229
Country Ranking
56,125
Institution Ranking
18
Lucas Mignien
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11
11
1.000
![](https://cdn.adscientificindex.com/logos/3450.png)
Freshwater biology
Biostatistics