@article{Samarkin2013plants,
author={Samarkin, A.. and Samarkina, M.. and Shashkarov, L..},
title={Plants development, the leaf surface dynamics,  the content of chlorophyll, net photosynthetic productivity,  the coefficient of use of far, depending on the planting tubers depth},
journal={Vestnik of Kazan State Agrarian University},
publisher={Kazan state agrarian University},
year={2013},
pages={131-134},
volume={8},
issue={3},
}