Søilen, Klaus Solberg, Gerson Tontini, and Ulf Aagerup. “The Perception of Useful Information Derived from Twitter: A Survey of Professionals”. Journal of Intelligence Studies in Business 7, no. 3 (November 30, 2017): 50–61. Accessed December 23, 2024. https://journal.lu.lv/JISIB/article/view/2241.