%0 Journal Article %A V. A. Kyrov %A G. G. Mikhailichenko %T Solution of three systems of functional equations related to complex, double and dual numbers %J Izvestiâ vysših učebnyh zavedenij. Matematika %D 2023 %P 42-51 %N 7 %I mathdoc %U http://geodesic.mathdoc.fr/item/IVM_2023_7_a4/ %G ru %F IVM_2023_7_a4