Safonov Konstantin V., Egorushkin Oleg I., Kolbasina Irina V. «Polynomial grammars generating an infinite set of languages» // Applied Discrete Mathematics. Supplement 2022. №15 C.78-80
Egorushkin O.I., Kolbasina I.V., Safonov K. V. «Geometric condition of formal grammars solvability» // Applied Discrete Mathematics. Supplement 2020. №13 C.106-108
Egorushkin O.I., Kolbasina I. V., Safonov K. V. «On consistency of systems of symbolic polynomial equations and their application» // Applied Discrete Mathematics. Supplement 2016. №9 C.119-121
Safonov K. V., Egorushkin O.I., Kolbasina I. V. «An analogue of implicit mapping theorem to formal grammars» // Applied Discrete Mathematics. Supplement 2017. №10 C.149-151
Kolbasina I. V., Safonov K. V. «A solvability condition for arbitrary formal grammars» // Applied Discrete Mathematics. Supplement 2019. №12 C.196-198
