00623naa#a2200181#i#450# EN\\bibl\49923 20240420123704.6 2072-9502 20220422b2022####ek#y0engy0150####ca RU Numerical-analytical transformation method of analyzing nonlinear mathematical models with polynomial structure Journal article Astrakhan Astrakhan State Technical University 2022 12 с. Journal article local Алгоритмы. 004.021 Ivanov Sergei Evgenievich Televnoy Andrey Dmitrievich vestnik.astu.org