@article{Efremov2021spatial,
author={Efremov, A.V. and Vereschagina, T.A. and Kadykova, N.. and Rustamyan, V.V.},
title={Spatial Geometric Cells — Quasipolyhedra},
journal={Geometry & Graphics},
publisher={INFRA-M Academic Publishing LLC.},
year={2021},
pages={30-38},
volume={9},
issue={3},
}