@article{Sergey N.2019scientifically,
author={Sergey N., L.N. and Bulychyov, V.A.},
title={Scientifically substantiated technology for reverse extrusion  of products made of anisotropic tubular billets},
journal={Science intensive technologies in mechanical engineering},
publisher={Bryansk State Technical University},
year={2019},
pages={12-18},
volume={2019},
issue={10},
}