Citation Rankings (Highly Cited Researchers) and the list of the most cited and influential researchers cover a wide range of scientific fields, spanning 197 main and sub-disciplines, as well as the Art and Humanities Citation Rankings and Social Sciences and Humanities Citation Rankings, offering a unique service. Additionally, the list without CERN, Statistical Data, etc., provided exclusively by “AD Scientific Index”, is part of our effort to balance the situation created by CERN and researchers with statistical data, who have an advantage over others, especially those in the social and humanities fields. There should be new regulations for multi-author and CERN papers. Citation lists also reveal many rule violations and unethical practices. See also for more specific citation analyses: 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
Tourism
Community-based tourism
Food tourism
Food
Sport event tourism
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,768
2,233
0.807
* Total Citation Counts Rankings
Ranking Based On Selection :2
Tourism
Ecotourism
Sustainable development
Climate change and other environmental issues
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
229
184
0.803
* Total Citation Counts Rankings
Ranking Based On Selection :3
Tourism
ecotourism
work integrated learning
entrepreneurship
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
28
27
0.964
* Total Citation Counts Rankings
Ranking Based On Selection :4
Gastronomy
Food service
kitchen design
environmental ergonomics
kitchen layout
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7
7
1.000
Andrea Giampiccoli
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,768
2,233
0.807
Tourism
Community-based tourism
Food tourism
Food
Sport event tourism
Nsizwazikhona Simon Chili
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
229
184
0.803
Tourism
Ecotourism
Sustainable development
Climate change and other environmental issues
Thulile Ndlovu
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
28
27
0.964
Tourism
ecotourism
work integrated learning
entrepreneurship
Sasi Gangiah
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7
7
1.000
Gastronomy
Food service
kitchen design
environmental ergonomics
kitchen layout