Hydromagnetic spectroscopy of the magnetosphere with Pc3 geomagnetic pulsations at 210 meridian,
Pilipenko, V., K. Yumoto, E. Fedorov, N. Yagova (1999),
Geomagnetism and Aeronomy, 17, 1 p. 53–65,
10.1007/s00585-999-0053-1.