1. Some aspects of lightning activity and related meteorological conditions;Brook;J. Geophys. Res.,1960
2. Noise investigation at VLF by the National Bureau of Standards;Crichlow;Proc. IEEE,1957
3. Determination of the amplitude-probability distribution of atmospheric radio noise from statistical moments;Crichlow;J. Res. Natl. Bur. Stand., Sect. D,1960
4. The return stroke of the lightning flash to earth as a source of VLF atmospherics;Dennis;J. Res. Natl. Bur. Stand., Sect. D,1964
5. On the theory of amplitude distribution of impulsive random noise;Furutsu;Jpn. J. Appl. Phys.,1960