@article{Syasko2017elaboration,
author={Syasko, V.A. and Gogolinskiy, K.V. and Nikazov, A.A.},
title={Elaboration of Leebhardness calibration machine},
journal={NDT World},
publisher={LLC SVEN},
year={2017},
pages={16-19},
volume={20},
issue={1},
}