@article{Petrov2014dependence,
author={Petrov, S.. and Mayorov, I.. and Serzhanov, I.. and Shaykhutdinov, F.. and Galiev, F..},
title={Dependence  of spring wheat on hydrothermal conditions of growing season of Kama area of middle Volga},
journal={Vestnik of Kazan State Agrarian University},
publisher={Kazan state agrarian University},
year={2014},
pages={138-142},
volume={8},
issue={4},
}