@article{Sergiev 2018analysis,
author={Sergiev , A.. and Makarov, A.V. and Vladimirov , A.. and Belov, N.V.},
title={ANALYSIS OF HARDNESS TEST METHODS AND PROSPECTS OF IMPROVEMENT},
journal={Bulletin of Belgorod State Technological University named after. V. G. Shukhov},
publisher={Belgorod State Technological University named after V.G. Shukhov},
year={2018},
pages={119-125},
volume={3},
issue={10},
}