1. Leader and junction processes in the lightning discharge as a source of VLF atmospherics;ARNOLD;Radio Science, J. Res. NBS/USNC-URSI,1964
2. The spectra of lightning discharges at very low frequencies;BRADLEY;JATP,1964
3. The distribution of thunderstorms over the globe;BROOKS;Geophys. Mem.,1925
4. Some aspects of lightning activity and related meteorological conditions;BROOK;Jour. of Geophysical Research,1960
5. The electricity of nimbo-stratus clouds;CHALMERS,1958