Закшевская, Е. В., И. В. Рысикова, and Т. В. Закшевская. “Methodological Aspects of Planning of Production and Marketing of Agricultural Products Based on the Marketing Approach”. Modern Economics: Problems and Solutions, Vol. 12, Apr. 2015, pp. 131-42, https://journals.vsu.ru/meps/article/view/4955.