@article{Kichigin2015shock,
author={Kichigin, G.N.},
title={Shock waves raised by explosions in space as sources of ultra-high-energy cosmic rays},
journal={Solnechno-Zemnaya Fizika},
publisher={INFRA-M Academic Publishing LLC.},
year={2015},
pages={109-114},
volume={1},
issue={1},
}