Jul 14 Quasiperiodic łt}formula{gt}~{}5-60s fluctuations of VLF signals propagating in the Earth-ionosphere waveguide: A result of pulsating auroral particle precipitation?
Jul 14 Rapid lateral expansion of optical luminosity in lightning-induced ionospheric flashes referred to as `elves’
Jul 14 On the accuracy of arrival azimuth determination of sprite-associated lightning flashes by Earth-ionosphere cavity resonances
Jul 14 {$gamma$}-ray emission produced by a relativistic beam of runaway electrons accelerated by quasi-electrostatic thundercloud fields