“On One of the Approaches to Approximate Calculation of Lebesgue–Stieltjes Integrals in Python in System Analysis Problems With Discrete Models”. Visnyk of Vinnytsia Politechnical Institute, no. 3, June 2021, pp. 61-68, https://doi.org/10.31649/1997-9266-2021-156-3-61-68.