@article{Lukyashchenko2014systematization,
author={Lukyashchenko, M.. and Zaichko, V.. and Zhiganov, A.. and Maksimov, A..},
title={Systematization of cosmic services },
journal={Services in Russia and abroad},
publisher={Russian State University of Tourism and Service},
year={2014},
pages={165-175},
volume={8},
issue={4},
}