@article{Selivanov2015wheel,
author={Selivanov, N.I. and Makeeva, Y.N.},
title={WHEEL TRACTOR BALLASTING IN TILLAGE},
journal={Bulletin of KSAU},
publisher={Krasnoyarsk State Agrarian University},
year={2015},
pages={77-81},
volume={},
issue={5},
}