Hantaro Nagaoka (1929). "Possibility of the radio transmission being disturbed by meteoric showers". Tokyo Imperial Academy, Proceedings. 5 (6): 233-236. doi:10.2183/pjab1912.5.233. Cited in Bibliography on meteoric radio wave propagation. Washington: U.S. National Bureau of Standards. 1961. ss. 76. Erişim tarihi: 17 Ağustos 2014.
doi.org
Hantaro Nagaoka (1929). "Possibility of the radio transmission being disturbed by meteoric showers". Tokyo Imperial Academy, Proceedings. 5 (6): 233-236. doi:10.2183/pjab1912.5.233. Cited in Bibliography on meteoric radio wave propagation. Washington: U.S. National Bureau of Standards. 1961. ss. 76. Erişim tarihi: 17 Ağustos 2014.
g3ynh.info
Nagaoka (6 Mayıs 1909). "The Inductance Coefficients of Solenoids"(PDF). Journal of the College of Science. Tokyo, Japan: Imperial University. 27 (6): 18. 17 Aralık 2019 tarihinde kaynağından arşivlendi(PDF). Erişim tarihi: 1 Kasım 2020.
web.archive.org
Nagaoka (6 Mayıs 1909). "The Inductance Coefficients of Solenoids"(PDF). Journal of the College of Science. Tokyo, Japan: Imperial University. 27 (6): 18. 17 Aralık 2019 tarihinde kaynağından arşivlendi(PDF). Erişim tarihi: 1 Kasım 2020.