I. I.Vasiliev, P. A. Smelov, N. V. Klimovskih, M. G. Shevashkevich, and E. N. Donskaya, “Operational Risk Management in A Commercial Bank”, IJET, vol. 7, no. 4.36, pp. 524–529, Dec. 2018, doi: 10.14419/ijet.v7i4.36.24130.