Лебедев, Г. Н., М. Г. Матвеев, М. Ю. Мишин, and М. Е. Семенов. “Dynamic Model of Optimal Manufacturing in Condition Behavior of Price”. Modern Economics: Problems and Solutions, Vol. 7, Apr. 2015, pp. 162-9, https://journals.vsu.ru/meps/article/view/4777.