1. 1Morita, Y., Imoto, T., and Ohtsuka, H. "Development of Japan's Next Generation Solid Rocket Launcher - the Epsilon Rocket," 61st Congress of the International Astronautical Federation (IAC), Prague, Czech Republic, 2010, Paper No. IAC10.D2.1.7.
2. 2Morita, Y., Imoto, T., Habu, H., and Ohtsuka, H. "Japan's Next Generation Solid Rocket Launcher," 60th Congress of the International Astronautical Federation (IAC), Daejeon,RepublicofKorea,2009, Paper No. IAC-09.D2.1.9.
3. Development status of the MU upper stage motors
4. 5Tokudome, S., Habu, H., Ui, K., Shimizu, F., Morita. Y., Nakano, N., Yachi, Y., Sano, N., and Tanno, H."Propulsion Systems for Epsilon Launch Vehicle and Its Future Prospects," The 28thSYmposiumonSpaceTechnologyandScience, Okinawa ConventionCenter,June 5-12,2011, Paper No. ISTS2011-g03.