Kwon, H.-J., K.-H. Kim, C.-W. Jun, K. Takahashi, D.-H. Lee, E. Lee, H. Jin, J. Seon, Y.-D. Park, and J. Hwang (2013),
Low-latitude Pi2 pulsations during intervals of quiet geomagnetic conditions (Kp 1), J. Geophys. Res. Space Physics, 118,
doi:10.1002/jgra.50582.