Nardin, Dmitry Sergeevich, Igor Aleksandrovich Bobrenko, Natalya Viktorovna Goman, Ekaterina Andreevna Vakalova, and Svetlana Aleksandrovna Nardina. 2016. “Increasing Economic Efficiency of Producing Wheat in the West Siberia and South Ural As a Factor of Developing Import Substitution”. International Review of Management and Marketing 6 (4):772-78. https://econjournals.com/index.php/irmm/article/view/3073.