For citations:
Martynenko A.A., Sazonova A.S., Filippov R.A. Choosing the optimal marketing plan to create long-term residual income in socio-economic systems. Proceedings of the Voronezh State University of Engineering Technologies. 2022;84(3):230-235. (In Russ.) https://doi.org/10.20914/2310-1202-2022-3-230-235