A. Diadiushkin, K. Sandkuhl, and A. Maiatin, “Fraud Detection in Payments Transactions: Overview of Existing Approaches and Usage for Instant Payments”, J. Complex Syst. Inform. Model. Q., no. 20, pp. 72–88, Oct. 2019, doi: 10.7250/csimq.2019-20.04.