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
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :1
Marketing
Consumer Psychology
Consumer Behavior Analysis
Digital Marketing
In-Store Marketing
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,646
1,942
0.734
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :2
Marketing
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10
10
1.000
Valdimar Sigurdsson
Reykjavik University
Reykjavík, Iceland
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,646
1,942
0.734
Marketing
Consumer Psychology
Consumer Behavior Analysis
Digital Marketing
In-Store Marketing
Freyja Thoroddsen Sigurdardottir
Reykjavik University
Reykjavík, Iceland
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10
10
1.000