1. V. N. Kunin, V. S. Pleshivtsev, and L. V. Furov, Teplofiz. Vys. Temp. 35, 866 (1997).
2. O. A. Sinkevich, Teplofiz. Vys. Temp. 35, 651 (1997); 35, 968 (1997).
3. B. M. Smirnov, The Ball-Lightning Problem (Nauka, Moscow, 1988).
4. I. P. Stakhanov, On the Physical Nature of Ball Lightning (Énergoatomizdat, Moscow, 1985).
5. H. R. Carlon, J. Appl. Phys. 52, 3111 (1981); 52, 2638 (1981).