1. Some synoptic aspects of thunder outbreaks over southeast England 1951-60;Atkinson;Weather,1966
2. Uber zündende Blitze im Königreich Bayern während des Zeiträumes 1833 bis 1882;Bezold;Abh. d. Kgl. Bayer Akad. d. Wiss. iikl.,1884
3. The frequency of thunderstorms at Kew Observatory;Bishop;Met Mag.,1947
4. Bowell , V. E. M. A. E. Brown R. H. Golde 1966 Thunderstorm activity in Great Britain 1955 to 1964
5. Diurnal variation of thunderstorms;Bower;Met. Mag.,1947