For citations:

Zhukov R.A., Kozlova N.O. On the probability distribution densities of an aggregated random variable for evaluating the functioning of complex systems: a three-dimensional case. Chebyshevskii Sbornik. 2022;23(3):255-261. (In Russ.) https://doi.org/10.22405/2226-8383-2022-23-3-255-261