@article{Vyshnyepolskiy2021geometric,
author={Vyshnyepolskiy, V.I. and Zavarihina, E.V. and Peh, D.S.},
title={Geometric Locations of Points Equally Distance from Two Given Geometric Figures. Part 4: Geometric Locations of Points Equally Remote from Two Spheres},
journal={Geometry & Graphics},
publisher={INFRA-M Academic Publishing LLC.},
year={2021},
pages={12-29},
volume={9},
issue={3},
}