@article{Grafskiy2017graphic-analytical,
author={Grafskiy, O.A. and Usmanov, A.V. and Holodilov, A.A.},
title={Graphic-Analytical Researches of Involution},
journal={Geometry & Graphics},
publisher={INFRA-M Academic Publishing LLC.},
year={2017},
pages={3-11},
volume={5},
issue={1},
}