1. 1) SpaceWorks: 2019 Nano/Microsatellite Market Forecast, 9th Edition, 2019.
2. 2) Lemmer, K.: Propulsion for CubeSats, Acta Astronautica, 134 (2017), pp. 231–243.
3. 3) Poghosyan, A. and Golkar, A.: CubeSat Evolution: Analyzing CubeSat Capabilities for Conducting Science Missions, Progr. Aerospace Sci., 88 (2017), pp. 59–83.
4. 4) Funase, R., Inamori, T., Ikari, S., Ozaki, N., Nakajima, S., Ariu, K., Koizumi, H., Kameda, S., Tomiki, A., Kobayashi, Y., Ito, T., and Kawakatsu, Y.: One-year Deep Space Flight Results of the World's First Full-scale 50-kg-class Deep Space Probe PROCYON and Its Future Prospects, Proceedings of the 30th Annual AIAA/USU Conference on Small Satellites, Logan, Utah, SSC16-III-05, 2016.
5. 5) Koizumi, H., Kawahara, H., Yaginuma, K., Asakawa, J., Nakagawa, Y., Nakamura, Y., Kojima, S., Matsuguma, T., Funase, R., Nakatsuka, J., and Komurasaki, K.: Initial Flight Operations of the Miniature Propulsion System Installed on Small Space Probe: PROCYON, Trans. JSASS Aerospace Technology Japan, 14 (2016), pp. Pb_13–Pb_22.