Egorushkin O. I., Kolbasina I. V., Safonov K. V. «On the solution of a general algebraic equation by power series and applications in the theory of formal grammars» // Applied Discrete Mathematics 2023. №60 C.106-113
Kolbasina I. V., Egorushkin O. I., Safonov K. V. «On a solution of polynomial grammars and the general algebraic equation» // Applied Discrete Mathematics. Supplement 2021. №14 C.176-178
