@article{Yarullin 2014the,
author={Yarullin , F.. and Ibyatov, R.. and Valiev, A.R. and Shiriyazdanov , R..},
title={The results of experimental research of rotational conical working unit in the soil canal},
journal={Vestnik of Kazan State Agrarian University},
publisher={Kazan state agrarian University},
year={2014},
pages={78-85},
volume={9},
issue={3},
}