@article{Murtazina2020free,
author={Murtazina, S.G. and Gaffarova, L.G. and Murtazin, M.G. and Ahrarova, A.S.},
title={FREE AND RELATED AMINO ACIDS IN THE SOILS OF FOREST-STEPPE  OF VOLGA REGION AND ITS ROLE},
journal={Vestnik of Kazan State Agrarian University},
publisher={Kazan state agrarian University},
year={2020},
pages={80-84},
volume={14},
issue={4},
}