Asuka Hirai, Fuminori Tsuchiya, Takahiro Obara, Yuto Katoh, Yoshizumi Miyoshi, Kazuo Shiokawa, Yasumasa Kasaba, Hiroaki Misawa, Chae Woo Jun, Satoshi Kurita, et al. Spatio-Temporal Characteristics of IPDP-Type EMIC Waves on April 19, 2017: Implications for Loss of Relativistic Electrons in the Outer Belt. Journal of Geophysical Research: Space Physics. 2023. 128. 8
Peter Maruzines, T.Obara, LTS Working Group. GUIDELINES FOR THE LONG-TERM SUSTAINABILITY OF OUTER SPACE ACTIVITIES OF THE COMMITTEE ON THE PEACEFUL USES OF OUTER SPACE. UN COPUOS REPORT, https://www.unoosa.org/res/oosadoc/data/documents/2021/stspace/stspace79_0_html/st_space79E.pdf,. 2021
Mitsuo Oka, Takahiro Obara, Nariaki V. Nitta, Seiji Yashiro, Daikou Shiota, Kiyoshi Ichimoto. Unusual enhancement of ~ 30 MeV proton flux in an ICME sheath region. Earth, Planets and Space. 2021. 73. 1