@article{Nuretdinova2015, author={Nuretdinova, Y.. and Nuretdinov, I.. and Khasyanov, O..}, title={ OPTIMIZATION OF SOWN AREA STRUCTURE OF CROPS BY ECONOMIC AND MATHEMATICAL MODELING: PRACTICAL ASPECT}, journal={Vestnik of Kazan State Agrarian University}, publisher={Kazan state agrarian University}, year={2015}, pages={24-27}, volume={10}, issue={4}, }