(en) Hantaro Nagaoka, « Possibility of the radio transmission being disturbed by meteoric showers », Tokyo Imperial Academy, Proceedings, vol. 5, no 6, , p. 233–236 extrait de : Wilhelm Nupen, Bibliography on meteoric radio wave propagation, Washington, U.S. National Bureau of Standards, , 76 p. (lire en ligne)
g3ynh.info
(en) Hantaro Nagaoka, « The Inductance Coefficients of Solenoids », Journal of the College of Science, Tokyo, Imperial University, vol. 27, no 6, , p. 18 (lire en ligne)
levity.com
Robert A. Nelson, Adept Alchemy, Rex Research, (lire en ligne), « Transmutations of Mercury to Gold ».
