@article{Butorina2013models,
author={Butorina, I.. and Kheyfets, A.L. and Vasileva, V..},
title={Models of complex form details in AutoCAD package},
journal={Geometry & Graphics},
publisher={INFRA-M Academic Publishing LLC.},
year={2013},
pages={70-72},
volume={1},
issue={1},
}