1. Averin, M. (2005). Ball Lightning. Plasma Beam Model. (In Russian)http://n-t.ru/tp/ng/sm1.pdf
2. First Spectrum of Ball Lightning
3. Observation of the Optical and Spectral Characteristics of Ball Lightning
4. Dmitriev, M. (2011). Black Lightning. (In Russian) http://n-t.ru/tp/mr/smb3.htm
5. Galanin, А. V. (2014). Plasmoid “Life”. (In Russian) http://ukhtoma.ru/dinamic9.htm