@article{Varaksin2014analysis,
author={Varaksin, A.Y. and Protasov, M..},
title={Analysis of Particle Motion in Wall-Free Concentrated Vortexes in Relation to Flight Safety Problem},
journal={Safety in Technosphere},
publisher={INFRA-M Academic Publishing LLC.},
year={2014},
pages={31-36},
volume={3},
issue={6},
}