1. The Nature of Ball Lightning;Singer,1978
2. Ball Lightning: An Unresolved Problem in Atmospheric Physics;Stenhoff,1999
3. Ball Lightning and Bead Lightning – Extreme Forms of Atmospheric Electricity;Barry,1980
4. On stability of concentric clouds of bipolar gaseous ions;Cole;J. Electrostat.,2002
5. Ball lightning elusive behavior depending on proton conductivity;Tennakone;Curr. Sci.,2006