Caciatori Jr., Itamir, and Ana Paula Mussi Szabo Cherobim. “Defining Categories of Fintechs: A Categorization Proposal Based on Literature and Empirical Data”. Future Studies Research Journal: Trends and Strategies, vol. 13, no. 3, Sept. 2021, pp. 386-08, doi:10.24023/FutureJournal/2175-5825/2021.v13i3.537.