Highlights

• M. Füllekrug, R. Roussel-Dupre, M.D. Symbalisty, O. Chanrion, A. Odzimek, O. van der Velde, and T. Neubert,
  Relativistic runaway breakdown in low frequency radio,
  Journal of Geophysical Research, 115, A00E09, doi:10.1029/2009JA014468, 1-10, 2010.
• M. Füllekrug,
  Probing the speed of light with radio waves at extremely low frequencies,
  Physical Review Letters, 93(4), 043901, 2004.
• M. Füllekrug, A.C. Fraser-Smith, and K. Schlegel,
  Global ionospheric D-layer height monitoring,
  Europhysics Letters, 59(4), 626, 2002.
• M. Füllekrug and S. Constable,
  Global triangulation of intense lightning discharges,
  Geophysical Research Letters, 27(3), 333, 2000.
• M. Füllekrug and A.C. Fraser-Smith,
  Global lightning and climate variability inferred from ELF magnetic field variations,
  Geophysical Research Letters, 24(19), 2411, 1997.

---