BOROVIKOV EVGENY. Two-factor Authentication through Flash Calls: Technical and Economic Analysis. International Journal of Computer (IJC), Jordan, v. 53, n. 1, p. 173–180, 2024. Disponível em: https://ijcjournal.org/InternationalJournalOfComputer/article/view/2351. Acesso em: 3 nov. 2025.