@article{Yagodkin2019peculiarities,
author={Yagodkin, M.v.},
title={Peculiarities of chip piling in tap chip grooves during thread-cutting  in ultra-small holes},
journal={Science intensive technologies in mechanical engineering},
publisher={Bryansk State Technical University},
year={2019},
pages={26-30},
volume={2019},
issue={4},
}